An official inquiry is coming:

New Jersey Governor Chris Christie announced on Thursday he had fired a top aide at the center of a brewing scandal that public officials orchestrated a massive traffic snarl on the busy George Washington Bridge to settle a political score.

The announcement came as the office of the U.S. attorney in New Jersey said it would launch an inquiry into claims that Christie's staff was behind the traffic jam after a local mayor declined to endorse Christie's re-election bid.

And Christie's top aides aren't talking:

A former transportation official at the center of a traffic scandal that has put New Jersey Gov. Chris Christie under fire refused to answer questions Thursday for state lawmakers investigating the matter.

David Wildstein, a top Christie appointee at the Port Authority of New York and New Jersey who resigned in December, cited his constitutional right to stay silent, even in response to basic questions like where he was previously employed. “On the advice of counsel, I assert my right to remain silent,” Wildstein said repeatedly.

This isn't going away anytime soon.