South Carolina Rep. Trey Gowdy Harold (Trey) Watson GowdySunday shows preview: Election integrity dominates as Nov. 3 nears Tim Scott invokes Breonna Taylor, George Floyd in Trump convention speech Sunday shows preview: Republicans gear up for national convention, USPS debate continues in Washington MORE (R) said Sunday that former FBI Deputy Director Andrew McCabe Andrew George McCabeGraham: Comey to testify about FBI's Russia probe, Mueller declined invitation Barr criticizes DOJ in speech declaring all agency power 'is invested in the attorney general' GOP votes to authorize subpoenas, depositions in Obama-era probe MORE undercut his own credibility.

“Andy McCabe has undercut his credibility all by himself,” the House Oversight and Government Reform Committee chairman told “Fox News Sunday.”

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“If he’s got credibility issues, he need to look no further than himself,” he later added.

Gowdy’s comments come after Attorney General Jeff Sessions Jefferson (Jeff) Beauregard SessionsGOP set to release controversial Biden report Trump's policies on refugees are as simple as ABCs Ocasio-Cortez, Velázquez call for convention to decide Puerto Rico status MORE said Friday that he fired the No. 2 FBI official for leaking information to the media and misleading congressional investigators.

Gowdy said on Sunday that he will withhold judgment on McCabe until the bureau’s inspector general report is released, but noted that McCabe's FBI colleagues recommended his dismissal.

“Make no mistake — the FBI is who recommended that he be fired. It wasn’t crazy House Republicans and it wasn’t the Trump administration,” Gowdy said. “It was his own fellow bureau agents.”