Today, the folks at First Read write:

*** The Colin Powell floodgates: Three semi-notable Republicans came out for Obama yesterday, including two former very-moderate Republican governors: Arne Carlson of Minnesota and Bill Weld of Massachusetts. Neither is that surprising to those that know the politics of the two ex-governors, but to a layman’s eyes, it’s not good news for McCain. What is striking here is that these endorsements underscore how McCain somehow lost his moderate identity — even among Republicans who seem to know him well. Seriously, these are the type of Republicans the McCain of 2000 would have counted on as his base. How did McCain end up being the nominee that was overly focused on wooing the base? How did he lose this middle-of-the-road mojo? Forget the Bush issue and the economy; McCain’s inability to keep his moderate identity might be the biggest mistake bungle of the campaign.

I agree that this is a central problem with the McCain campaign. McCain got the nomination in part because he was able to convince two very different groups — the religious conservatives and the moderates — that he was their guy. The moderates had loved him since 2000, and were happy to finally have a chance to brush past the Bush machine and get McCain elected. The religious conservatives were skeptical but they didn’t have that many options — there was a deep distrust of the Mormon Mitt Romney, and Mike Huckabee didn’t seem to be a serious contender (though I think it’s significant that he received as many votes as he did). Divorced, cross-dressing, gay-friendly Rudolph Giuliani of New York City was an even worse choice for this group than McCain.

So they were brought along, grudgingly. And the grudge showed.