Roots of Defeat

THE four-year ascent of Barack Obama from state senator to president marks not just the triumph of a man, but the coming of age of a movement.

That movement belongs to liberal (or “progressive”) Democrats, who in less than a decade have remade themselves. Once respected only in academia and the news media, they have become a fighting force. They systemically digitized the means of political organization and strategy, with the ultimate goal of dominating the political system-“Crush their spirits!” was Daily Kos blogger Markos Moulitsas Zuniga’s pre-election rallying cry.