There are more than a few FReepers who are at home with the Left on social issues. I have a label for these types, but conservative isn't one of them.
And I think you're wrong in labelling McCain as a conservative. "Opportunist" is a more fitting description. Apparently, Mr. Lugar, of Indiana also fits that bill, although he is a tad less vocal. And Mr. Hagel, is the cheerleader for the group. You can keep them all, in my opinion.