My Doubts About John McCain ...
... have a LOT to do with this.
I didn't find a lot of photos of McCain chumming it up with conservatives.
In the end, for me, it's all about the judges. And I just don't see McCain risking a fight over judges - thereby alienating his liberal friends in the Senate - by nominating people like Antonin Scalia, Clarence Thomas, John Roberts, or Samuel Alito to sit on the Supreme Court.
And therein, I believe, lies his antipathy towards nominating someone who might "wear his conservatism on his sleeve", as he has now so famously accused Justice Alito.