In 1968, Allard K. Lowenstein and his anti-Vietnam War Dump Johnson movement recruited McCarthy to run against incumbent President Lyndon B. Johnson. Reportedly, Lowenstein first attempted to recruit Senator Robert F. Kennedy, who declined to run, then Senator George McGovern, who also declined (Kennedy decided to run after the primary on March 16, 1968, and McGovern also later briefly entered the race). McCarthy entered and almost defeated Johnson in the New Hampshire Democratic primary, with the intention of influencing the federal government—then controlled by Democrats—to curtail its involvement in the Vietnam War. A number of antiwar college students and other activists from around the country traveled to New Hampshire to support McCarthy's campaign. Some antiwar students who had the long-haired, counterculture appearance of hippies chose to cut their long hair and shave off their beards in order to campaign for McCarthy door-to-door, a phenomenon that led to the informal slogan "Get clean for Gene".