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Jill Biden to Ukrainian mom: Russia war ‘hard to understand’

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden wears a large Ukrainian pin on her jacket as she walks toward her plane at Koscice International Airport in Kosice, Slovakia, Sunday, May 8, 2022. Biden spent part of her day visiting with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, in Ukraine. An aide said she received the pin from the head of Mrs. Zelenska's security detail after she gave him one of her challenge coins. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits Vysne Nemecke, Slovakia, and the border facilities at are next to Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits Vysne Nemecke, Slovakia, and the border facilities at are next to Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits Vysne Nemecke, Slovakia, and the border facilities at are next to Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits Vysne Nemecke, Slovakia, and the border facilities at are next to Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden, second left, and Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, join a group of children at School 6 in making tissue-paper bears to give as Mother's Day gifts in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First Lady Jill Biden reaches out to hug Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, left, at the end of their visit to School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden sits with Slovakia's Prime Minister Eduard Hege as Capt. Frantisek Krusinsky, Priest from the Ordinariate of Slovak Armed Forces, leads a prayer in Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden meets with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, at School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as she visits a tent operated by Slovak Catholic charities with food and other supplies for refugees during trip to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden sits with Slovakia's Prime Minister Eduard Hege as Capt. Frantisek Krusinsky, Priest from the Ordinariate of Slovak Armed Forces, leads a prayer in Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden meets with Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, at School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenska, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as she visits a tent operated by Slovak Catholic charities with food and other supplies for refugees during trip to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden sits with Slovakia's Prime Minister Eduard Hege as Capt. Frantisek Krusinsky, Priest from the Ordinariate of Slovak Armed Forces, leads a prayer in Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden meets with Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, at School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden greets Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden receives flowers from Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as she visits a tent operated by Slovak Catholic charities with food and other supplies for refugees during trip to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden sits with Slovakia's Prime Minister Eduard Hege as Capt. Frantisek Krusinsky, Priest from the Ordinariate of Slovak Armed Forces, leads a prayer in Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden meets with Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, at School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden receives flowers from Olena Zelenskyy, spouse of Ukrainian's President Volodymyr Zelenskyy, outside of School 6, a public school that has taken in displaced students in Uzhhorod, Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as she visits a tent operated by Slovak Catholic charities with food and other supplies for refugees during trip to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden sits with Slovakia's Prime Minister Eduard Hege as Capt. Frantisek Krusinsky, Priest from the Ordinariate of Slovak Armed Forces, leads a prayer in Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with people at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022, for Ukranian refugees as they rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at left. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Slovakia's Prime Minister Eduard Heger as she visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden speaks during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, third from right, speaks after walking from Vysne Nemecke, Slovakia, across the border with Ukraine, red line, during a visit Sunday, May 8, 2022. From left, Slovakia Prime Minister Eduard Heger's spouse Lucia Hegerova, Heger, Biden, Minister of the Interior of Slovakia Roman Mikulec, and Gucky. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is behind Biden. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and first responders during a visit to Vysne Nemecke, Slovakia, near the border with Ukraine, Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger is at right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden listens as Slovakia's Prime Minister Eduard Heger speaks as she walks from Vysne Nemecke, Slovakia, towards the border with Ukraine, red line, during a visit Sunday, May 8, 2022. Slovakia's Prime Minister Eduard Heger's wife Lucia Hegerova, left, and Robert Gucky, Slovakia's Director of the Border and Foreign Police Office, Presidium of the Police Force, second from right. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Slovak and Ukrainian mothers and their children as the families participate in a Mother's Day activity in Kosice, Slovakia, Sunday, May 8, 2022. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden meets Ukrainian refugees Victorie Kutocha and her daughter Yulie Kutocha, 7, at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022. The center is a place for Ukrainian refugees to rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and Ukrainian refugees at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022. The center is a place for Ukrainian refugees to rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with Ukrainian refugees at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022. The center is a place for Ukrainian refugees to rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden visits with volunteers and Ukrainian refugees at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022. The center is a place for Ukrainian refugees to rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden hugs Ukrainian refugees Victorie Kutocha and her daughter Yulie Kutocha, 7, at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022. The center is a place for Ukrainian refugees to rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden talks with Ukrainian refugees Victorie Kutocha and her daughter Yulie Kutocha, 7, at a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022. The center is a place for Ukrainian refugees to rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

First lady Jill Biden gets a hug from Ukrainian refugee Yulie Kutocha, 7, as her mother Victorie Kutocha, watches at right, during a visit to a city-run refugee center in Kosice, Slovakia, Sunday, May 8, 2022. The center is a place for Ukrainian refugees to rest and prepare for onward travel. Biden will then travel to the Slovak border with Ukraine to meet with refugees. (AP Photo/Susan Walsh, Pool)

Jill Biden to Ukrainian mom: Russia war ‘hard to understand’