But as they say in the stockbrokerage business, "past performance is no predictor of future performance."
Remember, it was Ronald Reagan who had signed the bill legalizing infanticide in California, as governor of that state.
Politicians wiffle-and-waffle all the time; it's part of the game.
So I don't really judge candidates by past performance, or by ideology.
My only criteria is, how much character, how much principle (omitting in politics), how much integrity, a candidate has.
In 2000, my first choice was Richard Cheney, in 2008, Duncan Hunter, simply because of the sterlingness of their character, principle, and integrity (I had, much to my great happiness, underestimated that of George Bush, surely the most principled president in my entire life).
As the current (R) candidates and potential (R) candidates strike me, none of them scores less than an A- in personal character and integrity.