Andrew Breitbart sits in an Aeron chair at an iMac computer gazing out the sliding glass door of his Los Angeles home office. On the patio, a hula hoop and a portable basketball rim await his children’s return from school. Breitbart, 41, dressed on this late-winter day in his standard work uniform of a dirty oxford-cloth shirt and grungy khaki shorts, looks more like a surf bum than one of the most divisive figures in America’s political and culture wars. Then his BlackBerry rings. The woman at the other end of the line, conservative fulminator Ann Coulter, is among Breitbart’s staunchest allies, and they soon are engaged in a spirited attack on liberals. “Their entire structure is writhing in diseased agony on the side of the road, and they don’t even realize it,” Breitbart says. But the left isn’t the only object of disdain. “I’m sick of this effete GOP nothing sandwich,” he adds, growing more animated.