Rebecca Watson makes one mistake (Galileo wasn’t executed, although he was tortured by the Church) but nails Rick Perry’s nuttiness on the head.
Something I’ve noticed about the US presidential race as stands is that all the Republican candidates seem to be absolute cranks. The only exception is Jon Huntsman, who has relatively sensible ideas on science and a serviceable position on civil rights that one could agree to respectfully disagree with.
Huntsman, however, is barely registering in the early opinion polls, so it’s highly likely the Republican Party (let’s not call it the GOP: it’s metamorphasised into a Soviet propaganda writer’s parody of its former self) will have a genuine wingnut in the running for the next election. Given that the majority of Americans identify as political independents, I’d say that despite the general dissatisfaction with his work thus far, Obama has the next term in the bag.