Roll Call's Jonathan Strong reports that Ron Paul's office has a history of billing both US taxpayers and outside groups for the same flights -- and that he's been confronted about it: In March 2005, David James called Rep. Ron Paul's (R-Texas) Congressional office for some documentation. James's nonprofit group, the Liberty Committee, had paid for one of Paul's flights, and James needed a receipt or boarding pass to document the expense. He'd been pushing Paul for the paperwork and now, on the phone, he was "putting his foot down.... ....David James wants Liberty Committee's money back, and is really...