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)

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)

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)

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)

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)

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)

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)

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)