The Atlantic’s Marc Ambinder has been one of the most assiduous cheerleaders for the Obama Democrats. So it’s noteworthy that, having previewed the Democrats’ talking points for the 2010 election, he now finds them wanting. It’s a little (and uncharacteristically) incoherent, but worth reading nonetheless. Sample: “Declaring that the Democrats are the party of accomplishments is one thing, but it really does not matter to swing voters in all those House seats straddling the Appalachian Trial, the industrial Midwest and the Rocky Mountain region that the U.S. is once again beloved in the world, that Obama is a man of science, or that he appointed a Latina to the Supreme Court.” Sounds like pretty weak tea, doesn’t it?