the campaign reimburses the white house. but I believe they are only charged for comparable tickets on a commercial flight, not the full cost of transportation and security.
That's my understanding.
But then the usual trick is to drop an official function in the trip and write it off.
Meeting with the Mayor to discuss terrorism, off street parking, whatever, and it's an official trip.
Last time I recall him in Raleigh he had a 34 vehicle support motorcade including an EMS truck. Shut all roads even remotely giving access to the airport for miles. Awful.
Yeh, and Hillary is good about reimbursing her campaign bills. >spit>