Washington (CNN) The FBI's top liaison on Capitol Hill is out.

Greg Brower, an FBI assistant director and head of the Office of Congressional Affairs, stepped down last Friday after a year on the job. In the role, Brower was on the receiving end of a pack of congressional probes into the law enforcement agency's conduct.

The decision, a "tough" one he made of his own accord, Brower said, follows other high-level departures from the bureau as FBI Director Christopher Wray assembles his own team of close advisers.

"It was tough but I had an offer I couldn't refuse from a great law firm," Brower said in an interview Thursday. "It was very gratifying to be a part of that team. I could not be more proud of how people work and how committed they are to the mission."

Brower was appointed to the position by then-FBI director James Comey in March of 2017 after serving as the bureau's deputy general counsel. He will join the lobbying and law firm Brownstein Hyatt Farber Schreck as a shareholder in the litigation department.

Read More