U.S. President Joe Biden arrives for a mass at St. Joseph on the Brandywine Catholic Church in Wilmington, Delaware, U.S., November 18, 2023.

A bead of sweat rolls down a Marine's face as he holds a Ukrainian flag before U.S. President Joe Biden's meeting with Ukrainian President Volodymyr Zelenskyy at the White House, Thursday, September 21, 2023, in Washington, D.C.

U.S. President Joe Biden and Ukrainian President Volodymyr Zelenskyy meet in the Oval Office of the White House on Thursday, September 21, 2023, in Washington, D.C.

Marine One carrying U.S. President Joe Biden lands at the White House in Washington, U.S., May 28, 2023.

Children listen to speakers as U.S. President Joe Biden and first lady Jill Biden host a barbeque with active-duty military families on the South Lawn at the White House in Washington, U.S., July 4, 2023.

President Joe Biden and first lady Jill Biden kiss after watching the fireworks during an Independence Day celebration on the South Lawn at the White House in Washington, Tuesday, July 4, 2023.

President Joe Biden waits backstage before speaking at an event with the National Education Association at the Eisenhower Executive Office Building in Washington, U.S., July 4, 2023.

President Biden boards Air Force One at Joint Base Andrews, Friday, July 7, 2023, in Maryland.

President Joe Biden greets supporters during an Independence Day celebration on the South Lawn at the White House in Washington, U.S., July 4, 2023.

United States President Joe Biden looks on as Secretary of State Antony Blinken speaks at a chiefs of mission reception in the East Room of the White House in Washington, D.C., Tuesday, June 13, 2023.

President Joe Biden and first lady Jill Biden attend the 2023 Kennedy Center Honors gala at the Kennedy Center in Washington, U.S., December 3, 2023.

US President Joe Biden, center right, arrives in the House Chamber ahead of a State of the Union address at the US Capitol in Washington, DC, US, on Thursday, March 7, 2024.

President Joe Biden wears a mask while returning to the White House from his Rehoboth Beach home after recovering from a COVID-19 infection, Tuesday, July 23, 2024, in Washington.

President Joe Biden arrives at the White House in Washington, U.S., January 16, 2023.