Dodd endorses Obama

It is not a shock that another major Democratic candidate is endorsing Barack Obama. What is surprising is that as close a Clinton ally as Christopher Dodd is about to do so. And it appears he plans on more than an endorsement, but active campaigning for the Illinois Senator.

It's unclear what Dodd's task will be with the campaign or whether he'll be hitting those last two New England states still awaiting primaries next week. But if Obama eventually gets the nomination, Connecticut's two senators will be in opposing campaigns. Sen. Joseph I. Lieberman is one of Republican Sen. John McCain's staunchest allies.

Of course, what is most likely going on here is a carefully orchestrated signal from Centrist Democrats to Senator Clinton that it may be time to wave the white flag and drop out. How long until someone does so in a more clear and public way?