the race. Dukakis later revealed that his campaign had leaked the tape, and two members of his staff resigned. (Biden later ran twice more for the Democratic nomination, unsuccessfully in 2008 and successfully in 2020. He was elected the 47th vice president in 2008, serving two terms under President Barack Obama. In 2021, he became the 46th president, over 33 years after his first campaign for the office ended.) Al Gore, a senator from Tennessee, also chose to run for the nomination. Turning 40 in 1988, he would have been the youngest man to contest the presidency on a major party ticket since William Jennings Bryan in 1896, and the youngest president ever if elected, younger than John F. Kennedy at election age and Theodore Roosevelt at age of assumption of office. He eventually became the 45th Vice President of the United States under Bill Clinton, then the Democratic presidential nominee in 2000, losing to George W. Bush, George H.W.'s son. Primaries After Hart withdrew from the race, no clear frontrunner emerged before the primaries and caucuses began. The Iowa caucus was won by Dick Gephardt, who had been sagging heavily in the polls until, three weeks before the vote, he began campaigning as a populist and his numbers surged. Illinois Senator Paul M. Simon finished a surprising second, and Massachusetts Governor Michael Dukakis finished third. In the New Hampshire primary, Dukakis came in first, Gephardt fell to second, and Simon came in third. In an effort to weaken Gephardt's candidacy, both Dukakis and Gore ran negative television ads against Gephardt. The ads convinced the United Auto Workers, which had endorsed Gephardt, to withdraw their endorsement; this crippled Gephardt, as he relied heavily on the support of labor unions. In the Super Tuesday races, Dukakis won six primaries, to Gore's five, Jesse Jackson five and Gephardt one, with Gore and Jackson splitting the Southern states. The next week, Simon won Illinois with Jackson finishing second. 1988 remains the race with the most candidates winning primaries since the McGovern reforms of 1971. Jackson captured 6.9 million votes and won 11 contests: seven primaries (Alabama, the District of Columbia, Georgia, Louisiana, Mississippi, Puerto Rico and Virginia) and four caucuses (Delaware, Michigan, South Carolina and Vermont). He also scored March victories in Alaska's caucuses and Texas's local conventions, despite losing the Texas primary. Briefly, after he won 55% of the vote in the