Sharlet: The liberal blogosphere will soon be a-twitter over James Dobson’s announcement that he’s reconsidering his once absolutist opposition to McCain. Evidence, say Dobson’s and McCain’s critics, of the Christian Right’s hypocrisy. But I’ve long maintained that Dobson, despite his authoritarian faith, practices politics democratically. “There’s nothing dishonorable in a person rethinking his or her positions, especially in a constantly changing political context,” he told the AP. Dobson knows he’s reassuring his base that he, and by extension, they, are the open-minded ones. And liberal media figures will help him achieve that by blasting him as unprincipled. It’s a media loop everyone thinks is spinning their way. But only McCain will get new momentum.