There is a yearning for something new in the party - the leaders are nearing their 80s. She is whipping up the fringe, which is passionate. But let's not overestimate all this - according to that poll, 74% of Democrats would "consider voting for her." Against Trump, so would I. I would consider voting for Charles Manson against Trump, if the Constitution didn't make it clear that the president actually has to be alive.
But only 17% would "definitely" vote for her.