A good buddy of mine from high school and college is Jewish and a Republican. Duing the mid-80's he lived in NYC. He dated a woman who worked in set design for television. She told him when they went out with her friends he couldn't disclose that he was a Republican (they had never seen or been near one before and she didn't know how they would react).
I've been Jewish and a Conservative my whole life, so dating in NY was a challenge. I've told this story before, but I was set up with a good looking,Jewish Doctor..the whole package (Mom would have been ecstatic!). We sit down to dinner and, of course, the subject of politics came up and he told me he was supporting Jesse Jackson for President (this was the 80's). I got up, told him we obviously have nothing in common, so why waste each other's time. It was one of the coolest things I've ever done.