President Joe Biden and first lady Jill Biden board Air Force One as they arrive to depart, Tuesday, Aug. 13, 2024, at Joint Base Andrews, Md., en route to New Orleans. (AP Photo/Mark Schiefelbein)
President Joe Biden speaks to reporters as he departs the White House for a trip to New Orleans, Tuesday, Aug. 13, 2024, in Washington. (AP Photo/Manuel Balce Ceneta)
President Joe Biden, escorted by Air Force Col. Angela Ochoa, Commander, 89th Airlift Wing, walks to Air Force One as he arrives to depart, Tuesday, Aug. 13, 2024, at Joint Base Andrews, Md., en route to New Orleans. (AP Photo/Mark Schiefelbein)
President Joe Biden speaks to reporters as he leaves the White House for a trip to New Orleans, La., Tuesday, Aug. 13, 2024, in Washington. (AP Photo/Manuel Balce Ceneta)
President Joe Biden talks with reporters Tuesday, Aug. 13, 2024, at Louis Armstrong International Airport in New Orleans. (AP Photo/Mark Schiefelbein)
FILE - President Joe Biden speaks on the cancer moonshot initiative at the John F. Kennedy Library and Museum, Sept. 12, 2022, in Boston. (AP Photo/Evan Vucci)
President Joe Biden and first lady Jill Biden listen during a demonstration of cancer research and detection techniques at Tulane University, Tuesday, Aug. 13, 2024, in New Orleans. (AP Photo/Mark Schiefelbein)
President Joe Biden listens as Tulane University President Michael Fitts speaks during a demonstration of cancer research and detection techniques at Tulane University, Tuesday, Aug. 13, 2024, in New Orleans. (AP Photo/Mark Schiefelbein)
President Joe Biden greets former New Orleans Mayor Mitch Landrieu and his wife Cheryl Tuesday, Aug. 13, 2024, at Louis Armstrong International Airport in New Orleans. (AP Photo/Mark Schiefelbein)