Johnson faced pressure from some within the Democratic Party to name Robert F. Kennedy , the late President Kennedy 's younger brother and the U.S. Attorney General , as his vice-presidential choice , which Johnson staffers referred to internally as the " Bobby problem " . Kennedy and Johnson had disliked one another since the 1960 Democratic National Convention , where Kennedy tried to prevent Johnson from becoming his brother 's running mate ; moreover , Johnson wished to form his own legacy rather than being perceived as a " lame duck " . Although Johnson confided to aides on several occasions that he might be forced to accept Kennedy in order to secure a victory over a moderate Republican ticket such as Governor of New York Nelson Rockefeller and the popular Ambassador to South Vietnam Henry Cabot Lodge Jr. , Kennedy supporters attempted to force the issue by running a draft movement during the write-in New Hampshire primary . This movement gained momentum after Governor John W. King 's endorsement and infuriated Johnson . Kennedy received 25,094 votes for vice president in New Hampshire , far surpassing Hubert Humphrey , the next highest name and eventual nominee
1960 Democratic National Convention
1960 Democratic National Convention
1964 Democratic Party presidential primaries