Interesting take on the changing Democrat party

Peter Beinart has an interesting column on changes in the Democrat party. He points out the difference between "moderate" Democratic Leadership Council (DLC) Dems like Bill Clinton and the full-bore leftist Dems like Howard Dean. He points out that:

"Whether health care reform passes or not, Obama has embraced polarization over triangulation. He has chosen Karl Rove’s politics of base mobilization over Dick Morris’s politics of crossover appeal, with consequences not merely for how he campaigns for Democrats in 2010, but for he campaigns for himself in 2012."

Beinart implies that the DLC is essentially finished.