Sounded awful, so I looked up the whole tweet. The quote above is out of context, albeit somewhat less than refined. She was making the point that 100% of the Republican candidates are 100% behind Israel, so why was CNN wasting so much time on the issue when it was a foregone conclusion, unless they were hunting ratings, in which case the reference to the number of Jews makes a little sense
Still crude, but not anti-Semitic, especially since she is pro-Israel as well