The US is more religiously minded than other countries. I'm not so sure about the whole evolution topic (while some hard liners might care, I can't imagine the vast majority of Americans would). But believing in God is a big one (note that believing in God and believing in evolution are not mutually exclusive like Dawkins and other hardliners on the other side would have you believe). America was founded by a bunch of religious nuts who got kicked out of Europe for not partying enough. That's bound to color our politics.
Ironically, though, you almost never hear politicians actually quote the Bible. Using the parable about the
vineyard owner to support amnesty for illegal immigrants would be a powerful argument, but I've never even heard a hint of it. Most probably can't even name more than a few of the ten commandments (there was a Stephen Colbert interview where he tried to get the politician who wanted the ten commandments in from of courthouses to name 'em all. He got like 3 )
My guess is that while most of Americans say they're Christian, none of 'em actually pick up a Bible and read it, because they just don't really care. Might as well be illiterate. Just believe in Jesus and you're saved, sort of mentality. No effort required! Most just latch on to a charismatic preacher and have him tell them what to believe. Far less effort that way.
On to actual politicks, McCain was my choice on the Republican side. I liked him before, and I like him more during the republican debates. Everyone else was having a pissing contest to see who wanted to torture the most detainees. McCain says flatly "no torture", and he has a good perspective on it since he was, you know, tortured. He's principled, which I like. And I think he was shrewd to name Palin as his VP. Old white guy + Old white guy would have been sooooo 20th century. All that said, I think I'm leaning Obama. A thin majority of the country also seems to be leaning that way. Obama's a better speaker, and I think on economic terms Obama will cause less deficit than McCain. Republicans haven't been the party of fiscal responsibility for decades. The way Bush is throwing money at the housing market you'd think he was a New Dealer!