Unfortunately, Kirk is the lesser of 2 evils, but I will vote for him because the other guy is worse. That said, many people are going to vote for a Libertarian or another candidate rather than to vote for Kirk. If that happens to a great degree, Kirk will lose the election and Obama's guy will get in.
I hope people don't split the vote. I agree Kirk is the lesser of 2 evils but he's the best we have right now. And I think he's starting to get the idea that he'd better start voting more on the conservative side of the aisle. Probably purely political decision for him but again, he's all we have. This time around.