President Joe Biden walks over to speak with reporters at Andrews Air Force Base, Md., Monday, July 15, 2024. as he heads to Las Vegas. (AP Photo/Susan Walsh)

President Joe Biden greets people after arriving at Harry Reid International Airport in Las Vegas, Monday, July 15, 2024. (AP Photo/Susan Walsh)

President Joe Biden walks to board Air Force One at Andrews Air Force Base, Md., Monday, July 15, 2024. as he heads to Las Vegas. (AP Photo/Susan Walsh)

President Joe Biden speaks with reporters at Andrews Air Force Base, Md., Monday, July 15, 2024. as he heads to Las Vegas. (AP Photo/Susan Walsh)