By 1968, the New Left movement began to fall apart. The Democratic Party turned on Johnson over his Vietnam policies. Eugene McCarthy basically stopped campaigning after Bobby Kennedy’s assassination. The Civil Rights groups pulled out after Martin Luther King’s assassination. Finally, when the Democrats nominated Hubert Humphrey, who wanted to continue Johnson’s fight over seas, the youth movement showed up in force to protest, but it quickly turned into a riot. All the while, Nixon just sat back and watched the show, knowing their implosion was his gain.