Republican Arkansas Sen. Tom Cotton is calling on Attorney General Merrick Garland to fire Kristen Clarke following the Daily Signal’s reporting on her arrest and subsequent expungement.

“I write regarding an act of perjury committed by Kristen Clarke, Assistant Attorney General for Civil Rights,” he wrote in a letter first published by Breitbart News. “I call for Ms. Clarke’s immediate termination and removal from office.”

Cotton sourced The Daily Signal’s April 30 report revealing for the first time that Clarke hid her arrest for a domestic violence incident and its subsequent expungement from investigators when she was awaiting Senate confirmation to her high-ranking Justice Department post.