It's hard to think of a more stupid, despicable, ignorant remark she could have made. Comparing criticism of her violent rhetoric to the suffering of European and Russian Jewry is unacceptable, and should be unacceptable to anyone regardless of ideology.
Charitably, she's merely ignorant of its historical meaning, and, once apprised of it, will apologise. Less charitably, she knew exactly what she was saying, which is not merely ignorant but reprehensible. In the context of Beck's nakedly anti-Semitic extended attack on George Soros, after which Murdoch defended him, worse yet.
In either case, she has forfeited any right to any sort of public platform at all, much less a potential candidacy for the presidency. It would be precious were one or two Republicans to take her to task for this ugliness.