the last time that two siblings (Nelson and Winthrop Rockefeller) ran against each other in a presidential primary. Democratic Party nomination Other major candidates The following candidates were frequently interviewed by major broadcast networks, were listed in publicly published national polls, or ran a campaign that extended beyond their home delegation in the case of favorite sons. Humphrey received 166,463 votes in the primaries. Enter Eugene McCarthy Because Lyndon B. Johnson had been elected to the presidency only once, in 1964, and had served less than two full years of the term before that, the 22nd Amendment did not disqualify him from running for another term. As a result, it was widely assumed when 1968 began that President Johnson would run for another term, and that he would have little trouble winning the Democratic nomination. Despite growing opposition to Johnson's policies in Vietnam, it appeared that no prominent Democratic candidate would run against a sitting president of his own party. It was also accepted at the beginning of the year that Johnson's record of domestic accomplishments would overshadow public opposition to the Vietnam War and that he would easily boost his public image after he started campaigning. Even Senator Robert F. Kennedy from New York, an outspoken critic of Johnson's policies, with a large base of support, publicly declined to run against Johnson in the primaries. Poll numbers also suggested that a large share of Americans who opposed the Vietnam War felt the growth of the anti-war hippie movement among younger Americans and violent unrest on college campuses was not helping their cause. On January 30, however, claims by the Johnson administration that a recent troop surge would soon bring an end to the war were severely discredited when the Tet Offensive broke out. Although the American military was eventually able to fend off the attacks, and also inflict heavy losses among the communist opposition, the ability of the North Vietnamese Army and Viet Cong to launch large scale attacks during the Tet Offensive's long duration greatly weakened American support for the military draft and further combat operations in Vietnam. A recorded phone conversation which Johnson had with Chicago mayor Richard J. Daley on January 27 revealed that both men had become aware of Kennedy's private intention to enter the Democratic presidential primaries and that Johnson was willing to accept Daley's offer to run as Humphrey's vice president if he