Since the end of World War II, there have only been three incumbent presidents, all Democrats, who turned down running for a second term: Harry Truman, Lyndon Johnson, and Joe Biden.
The 46th president faced mounting pressure from his Democrat allies and legacy media outlets to bow out of the race since June 27, when he delivered a botched debate performance against Trump that was riddled with garbled remarks and where the president lost his train of thought and appeared more subdued than during other recent public events.
