Hubert Horatio Humphrey Jr. (May 27, 1911 – January 13, 1978) was the 38th vice president of the United States, serving from 1965 to 1969 under President Lyndon B. Johnson. A member of the Democratic Party, he twice served in the United States Senate, representing Minnesota from 1949 to 1964 and from 1971 to 1978. As a senator, he was a major leader of modern liberalism in the United States, while as vice president, he supported the controversial Vietnam War. An intensely divided Democratic Party nominated him in the 1968 presidential election, which he lost to Republican nominee Richard Nixon.
Born in Wallace, South Dakota, Humphrey attended the University of Minnesota. In 1943, he became a professor of political science at Macalester College and ran a failed campaign for mayor of Minneapolis. He helped found the Minnesota Democratic–Farmer–Labor Party (DFL) in 1944; the next year he was elected mayor of Minneapolis, serving until 1948 and co-founding the left-wing non-communist group Americans for Democratic Action in 1947. In 1948, he was elected to the U.S. Senate and successfully advocated for the inclusion of a proposal to end racial segregation in the 1948 Democratic National Convention's party platform.