Former PJP Participant Bruce Ackerman Fears It WillIt was the Democratic convention of 1968 in Chicago that began a trend toward presidential primaries as the proving ground for major party nominations. Vice President Hubert Humphrey received the Democratic nomination for president that year despite having entered the campaign late and despite a strong showing by other candidates, notably Minnesota senator Eugene McCarthy. The convention, which was marred by violence from youth groups protesting the Vietnam War and questioning the legitimacy of American traditions and practices, gave impetus to those arguing for a popular national primary or, failing that, state practices that relied more on binding delegates to the results of statewide primaries.