From the NYTimes:

Mr. Hayworth, an outspoken critic of the president’s approach, planned to travel to Arizona on Air Force One with Mr. Bush on Thursday for an immigration event. Mr. Hayworth, who attended the signing of the tax bill on Wednesday, said the president had offered a playful warning about the trip and Mr. Hayworth’s opposition. “He said, ‘Hey, be careful over by the emergency exit at 30,000 feet,’ ” Mr. Hayworth recounted.