"In the end, voters might say to themselves, 'Well, my choice is between someone who I don't find entirely trustworthy, or perhaps even mostly trustworthy, but [if] the difference [is] between her and someone who I think is unfit to be president, I'll choose the person I distrust over the person I'm convinced is incompetent," said Dante Scala, a political science professor at the University of New Hampshire. "That argument would not work against the great majority of [GOP candidates], but it might work in this case."
"For Sanders, I think there's a moment of truth sooner or later regarding playing negative ads," said Dante Scala, a political science professor at the University of New Hampshire who specializes in presidential elections. "Now, there's a case to be made that running negative ads in a party primary against a fellow party member is risky because partisans don't like seeing fellow partisans attack one another, so that can backfire. [Mr. Sanders and Mrs. Clinton] have ample reason to refrain from going negative, but that could well change, especially in Iowa, as we get closer."