From the Nixon Tapes, as quoted by Kevin J. McMahon, Nixon’s Court (2011):
Nixon: Incidentally, what is Rehnquist? I suppose he’s a damn Protestant?Attorney General John Mitchell: I’m sure of that. He’s just as WASPish as WASPish can be.Nixon: Yeah, well, that’s too damn bad. Tell him to change his religion.Mitchell: All right, I’ll get him baptized this afternoon.Nixon: Well, get him baptized and castrated, no, they don’t do that, I mean they circumcise — no, that’s the Jews. Well anyway, whatever he is, get him changed.
A great catch by Eugene Volokh of one of the Nixon tapes. Our 37th President may have been the funniest man that ever lived.