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Congressmen Andy Biggs and Matt Gaetz reacted to the hours-long closed-door hearing being attended by FBI Deputy Director Andrew McCabe.

Biggs (R-Ariz.) and Gaetz (R-Fla.) have called for special counsel Robert Mueller's resignation, claiming his deputies - like McCabe - have shown obvious signs of bias.

"The Peter Strzok scheme [of changing language in the FBI's statement on Hillary Clinton's emails] seems to have been hatched in Andy McCabe's presence," Gaetz said.

Biggs called for a public hearing where Congress can question McCabe in public view.

"The bias is so palpable and so real," he said. "Nobody thinks they're going to get a fair investigation at any level."

McCabe previously drew criticism for his connection to longtime Clinton confidant Virginia Gov. Terry McAuliffe (D).

McCabe's wife received $467,000 for a state senate campaign in the Old Dominion from McAuliffe's political action committee, according to the Wall Street Journal.

Jill McCabe lost that 2015 race to incumbent Dick Black (R-Loudoun).

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