Okay, so I've noticed a trend with politicians. Politicians are generally sane and reasonable people from my observations - stop laughing - but thanks to our political system and the whole "you have to win your party's nomination in the primaries, they have to go off the deep end to get a nomination. It happens to both sides too, so I don't want people pretending this is a problem that only Republicans have. Seriously. To win the party nominations, candidates sacrifice sanity to appeal to those some of the nuttier people in their party. Of course, in some races this problem has been much worse (see Romney/Ryan 2012).
I think the whole thing stinks for the nation. Most people are sane. That's why they have to dial it back for the general election, and most time that costs them as they look inconsistent. I really wish ideologues didn't have the power they do in our nation. Of course, sometimes candidates are being unintentionally honest and aren't just pandering. With our fucked up system, though, it's hard as fuck to tell.
By the way, if you're wondering what spurred this topic, i think it was Rick Perry sounding sane on CNN. Yes, the same "succession" Perry. Hell, plenty of people called McCain a nice guy before he went to douchebag mode for 2008. Our political system poisons the well, though. If they're sane, they have no chance in fuck to get the primary nomination. I think it's fucking bullshit.