Federal authorities in New Jersey have subpoenaed documents from Gov. Chris Christie’s re-election campaign as part of their Bridgegate investigation.

“All three subpoenas focus on the closure of lanes on the George Washington Bridge,” said lawyer Mark Sheridan, who has been hired to represent the campaign and the state Republican Party in the US attorney’s investigation.

E-mails show that Christie’s top aides orchestrated lane closures leading into the bridge in Fort Lee, where the mayor declined to endorse the incumbent governor in September.

His then-deputy chief of staff, Bridget Anne Kelly, wrote to a Port Authority official appointed by Christie that it was “time for some traffic problems in Fort Lee.”

Christie denied that the closures were politically motivated, but after the e-mails surfaced, he apologized and fired Kelly for lying to him.

He also forced two-time campaign manager Bill Stepien, to forgo becoming the next Republican state chairman over his role in the fiasco.

The materials in the federal subpoenas are due on Feb. 5.

The campaign and state party have also been subpoenaed by a legislative committee. Those subpoenas are more broad than what the feds have asked for, sources said.