The chairman of a New Jersey legislative committee looking into the role Gov. Chris Christie's administration played in an apparently politically motivated traffic jam is defending his role after criticism from a Christie ally.
Democratic Assemblyman John Wisniewski said Sunday on CBS' "Face the Nation" that he has not prejudged the case, but he does have doubts about the timeline the Republican governor has given about what he knew and when.
Also on the show, former New York City Republican Mayor Rudy Giuliani questioned Wisniewski's role, saying he has his mind made up already. Giuliani says he shouldn't be running the investigation.
The committee is looking into lane closures near the George Washington Bridge in September that appears to have been created as political retribution against a Democratic mayor.
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