The issue is not that Akin opposes abortion even in the cases of rape or incest (rare though those are, they do occur). Nor is it because may pro-life people who oppose abortion are legitimately uncomfortable forcing someone who has been victimized by a crime to carry a baby to term. (It is one thing when the child conceived is the product of your choice; it is another when the sex and the pregnancy are forced on you.) It is because Akin made a stupid and scientifically false statement: that a woman's body can "shut down" and prevent pregnancy in the case of "legitimate rape." That said, I hope he beats McCaskill anyway. It would be poetic justice.