McCain doesn't abandon his political beliefs here, but he acknowledges the need for civility, and he commends President Obama for giving a speech memorial speech in Arizona that sought to unify the country in the wake of the shootings rather than simply assigning blame. He goes on to call Obama a patriot, and he rejects critics who have called Obama unworthy of the office of president.
The whole thing just sort of reminded me why I used to have a great deal of respect for John McCain (I'll admit that some of his rhetoric lately has turned me off a bit, but he takes some responsibility for that sort of thing in this piece as well). I'm not saying that I always agreed with McCain's politics, but over the course of his career he's often seemed like a fair minded leader who was willing to respect his opponents, even while struggling fiercely against them (and despite the protestations of his critics on the far right, McCain has been a very effective senator, and he was a pretty strong candidate during the presidential election).
Anyway, I thought McCain showed a lot of class here, and I really, really hope he doesn't get raked over the coals by his peers on the right for writing this piece.
I also hope that there's some substance to the idea that these shootings could represent some sort of a turning point. I'm not saying I think it's likely, but I remain sort of hopeful.