"Mitt called me right away, and I could tell he was really embarrassed and outraged about it," Christie said in an interview with CNN on Tuesday.
"It's very disappointing," Christie said about the leaks. "I think it's a complete violation of trust of me and the spirit within which I entered that process."
Romney passed over Christie, and instead chose Rep. Paul Ryan (R-Wis.) to join the presidential ticket.
In the new book “Double Down,” journalists Mark Halperin and John Heilemann report a number of Romney’s aides resented Christie. One of them leaked information about the 2012 vetting process to the two authors.