Barack Obama says he's made his pick for vice president, but that all he's saying, USA Today reports. He won't even divulge whether his prospective running mate knows, or when the big announcement will come. "That's all you're going to get out of me," said Obama. Talking heads, meanwhile, continue to point to the top candidates as Joe Biden, Evan Bayh, Tim Kaine, and Kathleen Sebelius. Stay tuned tomorrow.