National Park Service workers push algae towards an aeration area in the center of the Lincoln Memorial Reflecting Pool following the completion of recent renovations in Washington, DC, on June 14, 2026. The reflecting pool project, undertaken as part of President Donald Trump's preparations for the nation's 250th anniversary, began in April and was completed last week. (Photo by Ken CEDENO / AFP via Getty Images)

WASHINGTON, DC - JUNE 14: The water in the Lincoln Memorial Reflecting Pool has turned green as has begun to bloom following the completion of recent renovations on June 14, 2026 in Washington, DC. The reflecting pool construction project started in April and work was completed last week as part of President Donald Trump’s plan ahead of the nation’s 250th anniversary. (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - JUNE 14: A worker uses a push broom to help clean up algae in the Lincoln Memorial Reflecting Pool following the completion of recent renovations on June 14, 2026 in Washington, DC. The reflecting pool construction project started in April and work was completed last week as part of President Donald Trump’s plan ahead of the nation’s 250th anniversary. (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - JUNE 14: National Park Service employees work to clean up algae in the Lincoln Memorial Reflecting Pool following the completion of recent renovations on June 14, 2026 in Washington, DC. The reflecting pool construction project started in April and work was completed last week as part of President Donald Trump’s plan ahead of the nation’s 250th anniversary. (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - JUNE 14: National Park Service employees work to clean up algae in the Lincoln Memorial Reflecting Pool following the completion of recent renovations on June 14, 2026 in Washington, DC. The reflecting pool construction project started in April and work was completed last week as part of President Donald Trump’s plan ahead of the nation’s 250th anniversary. (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - JUNE 14: National Park Service employees work to clean up algae in the Lincoln Memorial Reflecting Pool following the completion of recent renovations on June 14, 2026 in Washington, DC. The reflecting pool construction project started in April and work was completed last week as part of President Donald Trump’s plan ahead of the nation’s 250th anniversary. (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - JUNE 14: National Park Service employees work to clean up algae in the Lincoln Memorial Reflecting Pool following the completion of recent renovations on June 14, 2026 in Washington, DC. The reflecting pool construction project started in April and work was completed last week as part of President Donald Trump’s plan ahead of the nation’s 250th anniversary. (Photo by Tasos Katopodis/Getty Images)

WASHINGTON, DC - JUNE 14: National Park Service employees work to clean up algae in the Lincoln Memorial Reflecting Pool following the completion of recent renovations on June 14, 2026 in Washington, DC. The reflecting pool construction project started in April and work was completed last week as part of President Donald Trump’s plan ahead of the nation’s 250th anniversary. (Photo by Tasos Katopodis/Getty Images)