WASHINGTON, DC - NOVEMBER 4: A worker uses a hand skimmer to scoop leaves and other debris out of the Lincoln Memorial Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)

WASHINGTON, DC - NOVEMBER 4: A group of National Guard troops patrol the Lincoln Memorial Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)

WASHINGTON, DC - NOVEMBER 4: The Lincoln Memorial is see across the Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)

WASHINGTON, DC - NOVEMBER 4: Visitors walk along the Lincoln Memorial Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)

WASHINGTON, DC - NOVEMBER 4: Visitors walk along the Lincoln Memorial Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)

WASHINGTON, DC - NOVEMBER 4: A worker uses a hand skimmer to scoop leaves and other debris out of the Lincoln Memorial Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)

WASHINGTON, DC - NOVEMBER 4: The U.S. Capitol building is seen in the distance as visitors walk along the Lincoln Memorial Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)

WASHINGTON, DC - NOVEMBER 4: Workers use a hand skimmers to scoop leaves and other debris out of the Lincoln Memorial Reflecting Pool on the National Mall on November 4, 2026 in Washington, DC. After President Trump's midterm election-eve speech touting the success of the renovations of the Reflecting Pool, signs of possible quality issues and algae have already begun to appear. (Photo by Samuel Corum/Getty Images)