The week began with President Obama bouncing out of Charlotte with a post-convention bump in support. By Wednesday, Mitt Romney had stepped in it with his undignified swipe at the president in the middle of an ongoing crisis in Egypt and Libya. And like a moth to a flame, Sarah Palin piled on with her own brand of snark.

Mitt Romney makes comments on the killing of U.S. embassy officials in Benghazi, Libya, while speaking in Jacksonville, Fla. (Charles Dharapak/AP)