Patrols and nanobubbles continue at the Reflecting Pool as Trump looks for a renovation do-over

WASHINGTON (AP) — National Guard service members and U.S. Park Police were patrolling the deck around the Lincoln Memorial Reflecting Pool on Monday, as Donald Trump’s administration faces a self-imposed deadline to fix a botched renovation and cleaning efforts ahead of the nation’s 250th anniversary celebration.

The patrols come two days after Trump said authorities had made “multiple arrests” of people he insisted were responsible for damage to the peeling coating after an algae bloom occurred. The liner was installed as part of his $14 million-plus project.

The president has confirmed the problems likely require draining the pool again for liner repairs, and he promised a quick fix. But the timeline was not clear Monday, and the administration did not immediately respond to questions about a new round of work. Contractors and federal workers in recent days have been using chemicals and ozone nanobubbles to combat the algae.

Trump pitched the original improvements as intended to clean, beautify and reinforce an iconic site that he said had become dilapidated and dirty because of previous presidents’ neglect. Algae has plagued the pool for a century, and Trump insisted that a newly installed ‘American flag blue’ coating, which he selected himself, would turn the pool into a gleaming expanse along the National Mall.

Yet within weeks of Trump declaring the rehabilitation completed in time for Independence Day, the water was plagued by a vivid green algae bloom that clouded the pool’s coating. An approximately 4 foot-square piece of the liner was observed last Friday to be partially floating in the pool. The Associated Press observed additional pieces in the water Monday.

Via social media, the president has blamed the problems on “SICK, DERANGED PEOPLE!” He asserted Monday on Truth Social that intentional damages include a “300 foot long gash” and that “chemicals have been illegally placed in the water.” A day earlier, Trump posted, “Work will begin immediately on fixing the seriously vandalized Reflecting Pool.”

He has not substantiated those claims, and even if anyone has deliberately peeled the lining, that would not explain the algae bloom that appeared more intensely than what typically occurred before the renovation.

Images showing that Trump’s project apparently backfired boomeranged across social media last week, drawing crowds of onlookers eager to see the effects themselves. An unknown number ended up being detained by federal authorities.

One man arrested was David Hearn, 67, of Bethesda, Maryland. A former Olympic canoe racer, Hearn told The Associated Press that he reached into the pool because he wanted to examine the peeling new coating. He said he briefly touched a chunk that was still attached to the side of the pool, then let go shortly after a park worker told him to. Hearn said he was then detained by National Guard troops and Park Police for five hours before being released Friday night.

“I’m a curious citizen,” Hearn said in a telephone interview. “I reached down to see what it felt like. It was very rubbery.”

The Park Police did not immediately respond Monday to AP’s questions about how many arrests were made and whether any charges had been filed. Washington’s Metropolitan Police Department said Monday that the agency is not involved.

It was not immediately apparent what criminal or civil violation someone might commit reaching into the pool. Trump, in one of his Truth Social posts on the matter, threatened prison time for his unnamed assailants, referencing laws against defacing federal monuments.

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Barrow reported from Atlanta. Katie Vogel contributed reporting from Washington, D.C.