Reading the Evangelical Tea Leaves...

In a recent radio interview, James Dobson of Focus on the Family bluntly said that "speaking as a private individual, I would not vote for John McCain under any circumstances." Remembering that just a few months ago Dobson said that he didn't believe large numbers of conservative Christians would vote for a Mormon, what does this mean for Mitt Romney? Is this Dobson tipping his hat toward candidates in the mold of Sam Brownback? More importantly, how representative is Dobson of the evangelical community at large?