Twenty-second Amendment to the United States Constitution
Since coming into force in 1951, the amendment has applied to six presidents who have been elected twice: Dwight D. Eisenhower, Richard Nixon, Ronald Reagan, Bill Clinton, George W. Bush, and Barack Obama. It has also applied to two who entered office intra-term due to their predecessor's death or resignation: Lyndon B. Johnson and Gerald Ford. Johnson became president in November 1963, following the assassination of John F. Kennedy, served out the final of Kennedy's term, and was elected to a full four-year term in 1964. Four years later, he briefly ran for a second full term, but withdrew from the race during the party primaries. Had Johnson served a second full term – through January 20, 1973 – the total length of his presidency would have been ; as it happened, Johnson died two days after this date. Gerald Ford, who became president in August 1974 following the resignation of Richard Nixon, served the final of Nixon's term, and attempted to win a full four-year term in 1976, but was defeated by Jimmy Carter. Johnson was eligible to be elected to two full terms in his own right, as he had served less than two years of Kennedy's unexpired term, whereas Ford was eligible to be elected to only one full term, as he had served more than two years of Nixon's unexpired term.
2000 United States Senate election in New York
Giuliani and Clinton got another chance to battle each other during the 2016 U.S. presidential election, when she was the Democratic nominee and he was one of the few high-profile Republicans to enthusiastically campaign for that party's nominee, Donald Trump. As the "Washington Post" wrote, "Rudy Giuliani is finally running the race against Hillary Clinton that he first contemplated some 17 years ago: a brutish bout under a white-hot spotlight." His actions on behalf of Trump included not only fiery attacks on Clinton's record as Secretary of State but also charges that she was experiencing significant problems with her health. A Clinton spokesperson responded by pointing out that it was Giuliani who had left the 2000 senatorial race in part for health reasons, not Clinton. Giuliani said Clinton was "too stupid to be president" for having stayed married to her husband following the Lewinsky scandal. Clinton sent some mild barbs Giuliani's way during the Alfred E. Smith Memorial Foundation Dinner in October 2016, to which Giuliani responded to with stone-faced silence rather than the usual playing-along mirth. The former mayor also issued a false charge against Clinton's statements regarding her role following the September 11 attacks that he had to apologize for. And in the days leading up to the election, Giuliani implied, and then denied, that he had had inside knowledge of the FBI's late-in-the-campaign reopening of its investigation into the Clinton emails matter. Following Clinton's loss, Giuliani was considered to be on Trump's short list for both Attorney General – if picked, he said he would be open to prosecuting Clinton – and Clinton's past job of Secretary of State – where his potential conflicts from his post-mayoral consulting work, advisor roles, and paid speeches for foreign clients and corporations could have exposed him to some of the same charges that he had made against Clinton when she had held that position. In the event, he was not selected for either position.