The press secretary for Barack Obama, who first laughed at a question about the president's constitutional eligibility and later said there are 10,000 things more important, now is stumbling over the explanation. "I can't tell you why somebody believes, despite all preponderance of the evidence, that the president was born … uhm … in … uhh, uhh … was born here and not somewhere else. I've stopped trying to explain that," Robert Gibbs said in a recent news briefing. The response, in which he apparently meant, "I can't tell you why somebody believes that the president was born somewhere else...