An investigation ordered by Governor Chris Christie into the Bridgegate scandal has cleared him of any wrongdoing.

"Governor Christie had no knowledge beforehand of this George Washington Bridge realignment idea," attorney Randy Mastro said.

Instead, the report blames Christie's former deputy chief of staff Bridget Anne Kelly and former Port Authority official David Wildstein for the lane closures.

"David Wildstein was the person who originated this idea and orchestrated it.  David Wildstein went to Bridget Kelly for approval in the governor's office and they had an ulterior motive for implementing that decision," Mastro said.

The exact motive remains unclear.

"I can't get into what their motivations were, except to say that anybody who really knows me would not believe that doing something inexplicably stupid would please me," Governor Chris Christie told ABC's "World News with Diane Sawyer."

Democrats are skeptical of the report, saying the investigation was ordered by Christie's office and it didn't include interviews with some of the key players in the scandal.

Christie dismissed the criticism, claiming the lawyers are professionals.

"These people have their own professional and personal reputations, six of them are former federal prosecutors.  They're not going to whitewash anything for me," he said.

This won't be the last word on the Bridgegate scandal.  The state legislature is conducting its own investigation and the U.S. Attorney's office is also looking into the matter.


Photo Credit: Getty Images