Scott Pelley talks about Mitt Romney to Mitt Romney for 60 Minutes on September 23, 2012, emphasis mine:
“Ten years ago, when you were running for governor of Massachusetts, you were solidly pro-choice on abortion. Now you're against abortion, except in cases of rape, incest, or the health of the mother. When you were running for governor, you ridiculed the idea of signing a "no new taxes" pledge, and yet now you've signed one. Some people, Governor, have an uneasy feeling that you're not constant, that you say whatever you have to say in a particular moment.”
Now there’s a true understatement.
