U.S. Attorney General William Barr has elevated a top aide, Claire Murray, to a key role overseeing the Justice Department’s expansive portfolio of civil cases, including litigation defending Trump administration policies.

Murray’s promotion to the position of principal deputy associate attorney general, announced Tuesday, comes just months after she joined Barr’s office from the White House counsel’s office, where she’d helped shepherd then-Judge Brett Kavanaugh through his confirmation to the U.S. Supreme Court. A former partner at Kirkland & Ellis from 2015 to 2017, Murray clerked for Kavanaugh on the U.S. Court of Appeals for the D.C. Circuit and Justice Samuel Alito on the Supreme Court.