Over the summer, a Bloomberg/Los Angeles Times survey disclosed that 37 percent of Americans said they would not vote for a Mormon as president (Mitt Romney, the Massachusetts governor, is a Mormon and possible presidential contender). Some pundits, without looking at the disaggregated data, immediately assumed that conservative Christians were driving the numbers upwards. They were wrong.

The survey showed it was liberal Democrats who were the least likely to vote for a Mormon as president; the figure was 50 percent. Isn’t it funny that those who generally consider themselves to be the most tolerant are the least tolerant?