A New Jersey state lawmaker wants Congress to investigate the agency responsible for traffic jams caused by lane closures at a bridge into New York City.

George Washington Bridge (Spencer Platt, Getty Images)

Democrats claim the gridlock was an act of retribution by loyalists of Gov. Chris Christie.

Democratic state Sen. Loretta Weinberg of Bergen County tells The Associated Press she is readying a resolution asking Congress to investigate the Port Authority of New York and New Jersey.

In early September, two lanes from Fort Lee to the upper level of the George Washington Bridge were shut without warning at the behest of a Christie appointee, who resigned last week.

Weinberg says Congress has a role to play since it created the Port Authority and its investigative arm has previously reviewed authority operations.

The governor has denied the closures were politically motivated.