1968 was one of the most godawful, horrible, miserable years in U.S. history. It changed who we are as Americans, and “fueled a general sense that the nation had gone mad; that the normal rules and constants of politics could no longer be counted on.” How Robert Kennedy’s Assassination Changed American Politics.
The Tet Offensive at the end of January stunned both the U.S. and South Vietnamese armies, causing them to temporarily lose control of several cities and the U.S. embassy in Saigon. It had a profound effect on the U.S. government and shocked the U.S. public, which had been led to believe by its political and military leaders that the North Vietnamese were being defeated and incapable of launching such an ambitious military operation.
A month later, Walter Cronkite reported on his recent trip to Vietnam to view the aftermath of the Tet Offensive in his television special Who, What, When, Where, Why? He chastised American leaders for their optimism, and advised negotiation “… not as victors, but as an honorable people who lived up to their pledge to defend democracy, and did the best they could.” American support for the war declined.
In February, Richard M. Nixon (R-CA) declared his candidacy for the presidency. In March, Sen. Eugene McCarthy (D-MN) and his “children’s crusade” nearly defeated President Lyndon Johnson in the New Hampshire Democratic primary. Days later, Sen. Robert F. Kennedy (D-NY) declared his candidacy for president. By the end of March, President Johnson delivered his Address to the Nation Announcing Steps To Limit the War in Vietnam and Reporting His Decision Not To Seek Reelection. His Vice President, Hubert H. Humphrey, would run in his stead.