FBI Director Christopher Wray on Wednesday navigated hours of questions about the credibility of the bureau, as House Judiciary Committee Republicans increasingly seek to pin the agency as politically biased.

Wray, a Trump appointee, was at times aided by Democrats who sought to defend the bureau’s actions by highlighting wrongdoing by Trump or his associates.

Still, the blurry fault lines facing the agency were on display as some Democrats attacked the FBI’s handling of the Trump investigation and its spy tools, while Wray got a rare thank you from a Republican for his work helming the agency.

Republicans remained largely focused on a series of short-lived memos or prosecutions of conservatives they argue shows the agency unfairly targets the right.  

Wray’s responses were some of the most pointed for the mild-mannered director, who has faced a brewing grudge match with the GOP all but guaranteed to take center stage following the Republican takeover of Congress.

In his opening remarks, he nodded to the work in a small bureau in Ohio – one that happens to rest in the district of Chair Jim Jordan (R-Ohio), one of the bureau’s fiercest critics.