His campaign chair, Representative Patricia Schroeder, tested the waters for about four months after Hart's withdrawal, but decided in September 1987 that she would not run. In December 1987, Hart surprised many pundits by resuming his campaign, but the allegations of adultery had delivered a fatal blow to his candidacy, and he did poorly in the primaries before dropping out again. Senator Ted Kennedy of Massachusetts had been considered a potential candidate, but he ruled himself out of the race in the fall of 1985. Two other politicians mentioned as possible candidates, both from Arkansas, did not join the race: Senator Dale Bumpers and Governor and future President Bill Clinton. Joe Biden's campaign also ended in controversy after he was accused of plagiarizing a speech by Neil Kinnock, then-leader of the British Labour Party. The Dukakis campaign secretly released a video in which Biden was filmed repeating a Kinnock stump speech with only minor modifications. This ultimately led him to drop out of the race. Dukakis later revealed that his campaign was responsible for leaking the tape, and two members of his staff resigned. The Delaware Supreme Court's Board on Professional Responsibility would later clear Biden of the law school plagiarism charges. 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. Gore was later defeated by George W. Bush, George H.W.'s son, in 2000. 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.