"How am I paying for it? SarahPAC," she said, adding that she's traveling in "our own personal motor home that we've had in Alaska." Palin didn't answer when asked how long she's owned the bus that's adorned with the Constitution and a larger-than-life version of her signature. When asked, twice, how much her "One Nation Tour" has cost four days into the trip, she got visibly irritated. "Check SarahPAC.com," she said. "I don't know why in the world you would ask a question like that. I'm just thinking about America and our foundations and our freedoms and our opportunities. Why...