From YouTube to Text Messaging, Candidate's Team Connects to Voters--Amid the cramped, crowded cubicles inside Sen. Barack Obama's campaign headquarters here, sandals are as ubiquitous as iPods. Two young guys in shorts and T-shirts throw a football around. An electoral college map (California 55, Texas 34, etc.) is taped to the wall in the men's bathroom. A BlackBerrying staffer sneezes and blurts out, "Whew! I think I'm allergic to hope!" "Because of the Internet, Obama has built a movement. He's leading a cause. McCain is running on his résumé. He's leading a campaign," Castellanos continues. "Now what's going to win: a cause or a campaign? We don't know."