During the 1986 race for governor of Vermont, Bernie Sanders bristled at the popularity of the Democratic incumbent, Madeleine Kunin. Mr. Sanders, who was running against her as an independent, saw himself as a leader, and viewed Ms. Kunin as a lightweight.
She does very well on television, he told one interviewer. She has an excellent press secretary.
But really, he said another time, the governors appeal came down to one trait.
Many people are excited because shes the first woman governor, he said. But after that, there aint much.
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In the 1986 race, Mr. Sanders argued that he would be a strong feminist and do more for women than Ms. Kunin had. While granting that Ms. Kunin was not corrupt, he questioned if she had the same courage that he had. He repeatedly challenged her credentials as a fellow progressive, using some of the same language he aims at Mrs. Clinton. In the end, he damaged Ms. Kunin politically, as some Clinton supporters and political analysts think he may do in the current race.
In a tough fight, Bernie is hardly the all-positive, all-substance guy that he claims to be, said Garrison Nelson, a longtime political science professor at the University of Vermont.
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In Vermont, however, Mr. Sanders was known for belittling opponents at times, rather than merely challenging their ideas. During one debate in the 1986 governors race, Mr. Sanders was asked if he viewed Governor Kunin as the lesser of two evils, given his descriptions of the Democratic and Republican parties as Tweedledum and Tweedledee, and if he thought he might contribute to her political demise.
Governor, how does it feel to be the lesser of two evils? he asked. I think that really is what this campaign is about. Ms. Kunin was stone-faced.
Toward the end of that campaign, Ms. Kunin said, Mr. Sanders argued at a rally in Burlington, Vt., that he would do far more for women than Ms. Kunin.
Bernie thought I was an empty suit, and insisted that he was the better feminist because he would solve income inequality and that would help women, Ms. Kunin said in the interview. He could be sarcastic, but also very subtle.
A supporter of Mrs. Clintons presidential bid, Ms. Kunin said she saw similarities between his treatment of the two women.
Hes not going to say, Shes a woman, shes not qualified, said Ms. Kunin, who was re-elected with 47 percent of the vote after Mr. Sanders siphoned off some support. But he can paint a very subtle illusion talking about qualifications and judgment.
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Peter Smith, the Republican candidate for governor in 1986 and the congressman Mr. Sanders ousted in 1990, said that Mr. Sanders used passion to create a contrast between him and his opponent that may not, in fact, exist. Mr. Sanderss aides in the 1990 campaign said they would regularly taunt Mr. Smith about his positions on issues like the minimum wage, which the congressman would dispute, and then Mr. Sanders would come forward and accuse Mr. Smith of dishonesty. As a result, a running theme of that campaign was that Mr. Sanders had integrity and Mr. Smith lacked it.
The tool he uses is his intensity and his belief that, on the major issues he cares about, there is only one right answer, Mr. Smith said. And it is his.