(CNN) -- Rick Davis, the campaign manager for former John McCain's White House bid came to Sarah Palin's defense in an upcoming interview with the National Review, saying the now-infamous $150,000 clothing tab for the Alaska governor was caused by a "failure of management."
In the interview, set for publication next week, Davis notes Palin's appearance at the Republican convention came only days after she was named to the GOP ticket, and the Alaska governor had few clothes on hand that were appropriate for the event.
"We flew her out from Alaska to Arizona to Ohio to introduce her to the world and take control of her life. She didn't think 'dress for the convention', because it might have just been a nice day trip to Arizona if she didn't click with John. Very little prep had been done and if it had, we might have gotten picked off by the press. We were under incredible scrutiny."