Eugene Joseph McCarthy was an American politician, writer, and academic from Minnesota. He served in the United States House of Representatives from 1949 to 1959 and the United States Senate from 1959 to 1971. McCarthy sought the Democratic presidential nomination in the 1968 election, challenging incumbent Lyndon B. Johnson on an anti-Vietnam War platform. McCarthy unsuccessfully ran for U.S. president four more times.

The 1968 United States presidential election was the 46th quadrennial presidential election, held on Tuesday, November 5, 1968. The Republican nominee, former vice president Richard Nixon, defeated both the Democratic nominee, incumbent vice president Hubert Humphrey, and the American Independent Party nominee, former Alabama governor George Wallace. This was the last election until 1988 in which the incumbent president was not on the ballot. This is the most recent election where a third-party candidate won an electoral vote.