A maintenance vehicle, right, with a pool skimmer net in the back moves along the Lincoln Memorial Reflecting Pool Friday, June 26, 2026, in Washington. (AP Photo/Carolyn Kaster)

A worker uses a a pool skimmer net at the Lincoln Memorial Reflecting Pool Friday, June 26, 2026, in Washington. (AP Photo/Carolyn Kaster)

FILE - The Lincoln Memorial is visible as Dan DeMocker, of Tacoma Park, Md., slides pieces of ice toward his family as he ice skates on the frozen Reflecting Pool on the National Mall in Washington, Dec. 26, 2022. (AP Photo/Andrew Harnik, File)

FILE - Martin Zich, of Prague, Czech Republic, wades out of the Reflecting Pool on the National Mall in Washington after going in to take photographs, May 31, 2016. (AP Photo/Andrew Harnik, File)

FILE - Many supporters of the Poor People's Campaign wade into the Reflecting Pool during the Solidarity Day program at the Lincoln Memorial in Washington June 19, 1968. (AP Photo)

FILE - Washington residents Nanette Witter helps her younger sister, Dorinda, as they skate on Washington's frozen Reflecting Pool with the Lincoln Memorial in the background, on Jan. 10, 1968. (AP Photo/Charles Tasnadi)

FILE - People wade in the Reflecting Pool during the March on Washington, Aug. 28, 2020, at the Lincoln Memorial in Washington, on the 57th anniversary of the Rev. Martin Luther King Jr.'s "I Have A Dream" speech. (AP Photo/Alex Brandon, File)

Dennis Dahmer stands next to a statue of his father, Vernon Dahmer, Sr. who was killed when the Ku Klux Klan firebombed the family home 1966, outside the Forrest County Courthouse in Hattiesburg, Miss., Wednesday, June 3, 2026. (AP Photo/Gerald Herbert)