In the 1960 campaign, Lyndon B. Johnson was elected Vice President as John F. Kennedy’s running mate. On November 22, 1963, when Kennedy was assassinated, Johnson was sworn in as the 36th United States President, with a vision to build “A Great Society” for the American people. The other crisis arose from Viet Nam. Despite Johnson’s efforts to end Communist aggression and achieve a settlement, fighting continued. Controversy over the war had become acute by the end of March 1968, when he limited the bombing of North Viet Nam in order to initiate negotiations. At the same time, he startled the world by withdrawing as a candidate for re-election so that he might devote his full efforts, unimpeded by politics, to the quest for peace.