Hubert Humphrey 1968 presidential campaign

The 1968 presidential campaign of Hubert Humphrey began when Hubert Humphrey, the 38th and incumbent vice president of the United States, decided to seek the Democratic Party nomination for president of the United States on April 27, 1968, after incumbent President Lyndon B. Johnson withdrew his bid for reelection to a second full term on March 31, 1968, and endorsed him as his successor. Johnson withdrew after an unexpectedly strong challenge from anti-Vietnam War presidential candidate, Senator Eugene McCarthy of Minnesota, in the early Democratic primaries.

Source: Wikipedia — Hubert Humphrey 1968 presidential campaign (CC BY-SA 4.0)