Just that there wasn't a wide array of candidates whose votes hinged upon knowing what the Holocaust is; there was a choice between Red rapist and Blue rapist. So a large number of people who did vote likely voted along their party lines or the cultural political group they identify with (or against the group they identify not with), rather than because they strongly supported the specific candidate. We can't really draw strong, specific conclusions about the Holocaust knowledge of any candidates' voter base because other variables influencing the vote choice are orders of magnitude more influential on the outcome.