It seems unlikely to me that this will make a lot of difference. Dodd didn’t exactly light up the campaign trail in his brief time on it, and CT has already voted for Obama. Dodd himself has downplayed the importance of endorsements — his own in particular:
“People are smart enough. They can make their own choice,” he said. “And I’ve never been quite convinced that endorsements mean much anyway, and the assumption that I stand for somebody causes a great number of people to otherwise change their mind I think is terribly presumptuous.
“I don’t have this exalted view that having been a candidate will somehow bring some unique and special qualities to this.”
So this isn’t a defining moment or anything, but it’s another small uptick in the ongoing O-mentum.