How can anyone with a modicum of knowledge about Michele Bachmann think she's Jewish?
The last name.
I once worked for a candidate in the mid 1980's named Holtzman, staunch Catholic, blond hair, blue eyes. She did not live in a Jewish neighborhood. She was out campaigning and somebody said to her, "I'm not voting for you; you're a JAP." She had never heard the term before and said, "I'm sorry, but I'm not Japanese."
We actually had to figure out how to handle it, because the population was about 2/3 Catholic and I thing less than 3% Jewish.
It is quite common, unfortunately.
More proof about how so many Americans have absolutely no clue.