National Guard members and U.S. Park Police are patrolling the Lincoln Memorial Reflecting Pool. The Trump administration faces a self-imposed July 4 deadline to fix issues from a renovation ahead of the nation's 250th anniversary. The patrols follow Trump's claim of "multiple arrests" for damage to the pool's liner. He confirmed the pool might need draining again for repairs. The timeline for repairs remains unclear. Contractors have been using chemicals to combat algae, which has plagued the pool for years. Trump blamed the issues on "SICK, DERANGED PEOPLE!" but hasn't substantiated those claims. The Park Police haven't confirmed the number of arrests.