Left: President Lyndon B. Johnson announcing he will not seek or accept the nomination for re-election and orders a halt to the bombing of North Vietnam, March 31, 1968. Image is a screen grab. Right: US President Joe Biden delivers a prime-time address to the nation in the Oval Office of the White House in Washington, DC, US, on Wednesday, July 24, 2024.
CBS via Getty Images; Evan Vucci/AP Photo/Bloomberg via Getty Images
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