House Oversight Committee Chairman Trey Gowdy challenged Justice Department Inspector General Michael Horowitz's determination that the FBI's handling of the Hillary Clinton email and Russia investigations was not motivated by political bias.

Horowitz's report, released Thursday, singled out former FBI Director James Comey for harsh criticism and referred five other bureau employees for potential disciplinary action.

Most notably, Horowitz found that anti-Trump text messages between FBI agent Peter Strzok and FBI attorney Lisa Page "potentially indicated or created the appearance that investigative decisions were impacted by bias or improper considerations."

In his opening statement at a high-profile congressional hearing on Tuesday, Gowdy (R-S.C.) said the report reveals that there were FBI agents and attorneys who decided to "prejudge" the outcome of the Clinton case.

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“These exact same FBI agents and attorney prejudged the outcome of the Russia investigation before it even began,” the former federal prosecutor added.

"If prejudging the outcome of an investigation before it ends and prejudging the outcome of an investigation before it begins is not evidence of outcome determinative bias, for the life of me I don't know what would be. That is textbook bias."

He said the failure of a handful of Justice Department and FBI officials to meet the fundamental expectations of fairness damages Americans' faith in our justice system.

"We can't survive with a justice system we don't trust," he concluded.

Watch the clip above.

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