Newly released emails involving a political payback plot orchestrated by Gov. Chris Christie's aides show the governor's campaign manager was kept informed of complaints over the closures even while lanes remained blocked.

George Washington Bridge
George Washington Bridge (Andrew Burton, Getty Images)
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More emails involving political adviser Bill Stepien were made public in a legal filing Monday.

Stepien has asked a judge to quash a subpoena from a legislative panel investigating the deliberate closing of traffic lanes near the George Washington Bridge to create gridlock.

The scandal has overshadowed Christie's administration and raised questions about his chances in a 2016 presidential race.

One email shows Christie's top appointee at the bridge agency following up with Stepien on a letter of complaint on the fourth full day of lane closures.

Christie maintains he didn't know about the operation. Stepien's lawyer says his client has done nothing wrong.

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