WASHINGTON, DC - NOVEMBER 4: One of multiple LVT Mobile Security Units monitors visitors as they walk around 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 04: People look on following an event at the site of the White House ballroom on November 04, 2026 in Washington, DC. During the event, President Trump signed the last remaining steel beam being used in construction of the ballroom. (Photo by Andrew Harnik/Getty Images)

WASHINGTON, DC - NOVEMBER 04: U.S. President Donald Trump speaks to members of the media during an event at the site of the White House ballroom on November 04, 2026 in Washington, DC. During the event, President Trump signed the last remaining steel beam being used in construction of the ballroom. (Photo by Andrew Harnik/Getty Images)

WASHINGTON, DC - NOVEMBER 04: U.S. President Donald Trump departs after an event at the site of the White House ballroom on November 04, 2026 in Washington, DC. During the event, President Trump signed the last remaining steel beam being used in construction of the ballroom. (Photo by Andrew Harnik/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: 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: 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)