I cannot count the number of times, in my whole CF experience, how much that question has been asked. It's very common, and the discussions (which sometimes have been known to turn into debate and even branch out into ugly arguments) are seemingly endless.
I am one of those rare ones in the realm of Christianity that cannot make a connection with politics of any kind with Christianity, as my views are all over the spectrum (what I can understand of politics, anyway), so I'm not sure I can give a satisfactory response here. Because it's just so corrupt all the way around, and although I'm aware some will disagree, I do not see a "lesser of two evils". I've said that before, but that is my honest opinion. That is why I don't affiliate myself with any political party, even if I ever do find a third party candidate that comes the closest to my stances as a whole. And I'm sorry, but neither the Republicans or the Democrats have it (no offense to my fellow elephant and donkey friends out there). I'm actually getting sick of the same old stuff they bring to the table all the time, and the arguments go round and round with no end in sight.
Well, here's something I want to get straight: I strongly believe in moral values as we understand them from the reading and study of God's Word, and every Christian (I hope) should be able to agree on that much. I agree that God's Word should be preached without compromise and believe strongly that issues should be addressed in church. Abortion, for example, is something that I personally believe is wrong no matter what (this and a couple of other issues may be why many Christians may lean Republican, understandably), and even in cases like rape and so forth, there are ways to lovingly encourage expectant mothers to keep their babies (or to at least put them up for adoption if they are unable to care for them or find them to be a constant reminder of their traumatic experiences). However, I also believe there are other issues to look at from a Biblical standpoint, as well, as all sin is alike in the eyes of God in that the ultimate consequence is the same for those who don't repent, and that is why I disagree with condemning those who can't bring themselves to vote straight Republican). I also strongly disagree with politicking from the platform in church, regardless of party. To pray for rulers and the government as a whole, I agree with that completely as it is Scriptural (1 Timothy 2:1-2). But aside from that, the church should be encouraged to vote their conscience on what they honestly feel is right, and not judge those who might disagree (no matter the side). Politics is just one of those topics that tend to divide more than unite, and I see it more and more all the time. Leaves me shaking my head.
Anyway, those are just my thoughts. I do not wish to debate with anyone.