If you ever wanted a good source to back up the statement that atheists are the minority least likely to get elected, Data360 has some nice graphs pulling together the various Gallup poll results on the topic.
Here’s the atheist chart in depth.
Compare that chart to those of how many people would vote for a homosexual or black person, respectively:
(via the Freakonomics blog)
[tags]atheist, atheism, president, gay, homosexual, black, data360[/tags]