Your logic is lousy.
McCaskill knew this guy was a clown when she funded ads supporting him in the primary. His temporary 11 point lead in the polls will shortly turn to a deficit and the media will never, ever let this go, they will harass this guy with his comments at every chance, not just him, but pretty much every single other male Republican running for office for the rest of this election season.
Let me guess: You think that social issues like abortion have no place in electoral platforms.