I've made that reference a few times in the past week, although to me personally, it's not so much Hitler as it is any public fanning of the old Us vs Them flames. It is quite troubling to see how easy it is for a politician to set off these people. That apparent "hockey mom" appeal only fuels this on; this is someone these people aren't afraid to be honest with, because hey, she's "one of them" (or, that's the image she has been given by her party). And it's equally troubling that these same people seem to see no problem with "one of them" running for VP of the United States. Talk about being out of touch with reality, and reason.
They are playing a dangerous game, though. They are desperately trying to make the terrorist angle stick, but what of people who say nothing when attendants call for the head of a person running for President? That sounds more than a little bit like terrorist jargon and behavior to me.