The 1960 United States presidential election was the 44th quadrennial presidential election. It was held on Tuesday, November 8, 1960. In a closely contested election, Democratic United States Senator John F. Kennedy defeated the incumbent vice president Richard Nixon, the Republican nominee. This was the first election in which 50 states participated, and the last in which the District of Columbia did not, marking the first participation of Alaska and Hawaii. This made it the only presidential election where the threshold for victory was 269 electoral votes. It was also the first election in which an incumbent president was ineligible to run for a third term because of the term limits established by the 22nd Amendment. This was the most recent election in which three of the four major party nominees for president and vice president were eventually elected president. Kennedy won the election, but was assassinated in 1963 and succeeded by Johnson, who won re-election in 1964. Then, Nixon won the 1968 election to succeed Johnson who decided not to run for re-election that year. Of the four candidates, only Republican vice-presidential nominee Henry Cabot Lodge Jr. failed to succeed to the presidency. As such, this was also the most recent election in which the defeated presidential nominee would ultimately later win renomination or the presidency. The election saw the first time that a candidate won the presidency while carrying fewer states than the other candidate, something that would not occur again until 1976. When Kennedy was elected, he became the youngest president elected to the presidency at 43.7 years, while Theodore Roosevelt was still the youngest President at 42 years and 10 months when he became president in September 1901. No matter which candidate won, America would elect its first President and Vice President born in the 20th century as Kennedy was born in 1917, Nixon was born in 1913, Johnson was born in 1908, and Lodge was born in 1902. Nixon faced little opposition in the Republican race to succeed popular incumbent Dwight D. Eisenhower. Kennedy, a junior U.S. senator from Massachusetts, established himself as the Democratic front-runner with his strong performance in the 1960 Democratic primaries, including a key victory in West Virginia over Senator Hubert Humphrey. He defeated Senate Majority Leader Lyndon B. Johnson on the first presidential ballot of the 1960 Democratic National Convention, and asked Johnson to serve as his running mate. The