Senate Minority Leader Mitch McConnell (R-Ky.) announced a number of key staff changes Tuesday, including promoting senior policy adviser Rohit Kumar to deputy chief of staff.

Kumar has been a policy adviser to the last three GOP leaders, including former Majority Leaders Trent Lott (Miss.) and Bill Frist (Tenn.). He began his Hill career with former Sen. Phil Gramm (R-Texas), and earned his law degree from the University of Virginia and clerked for a federal circuit court judge.

The deputy chief of staff position had been vacant since Sharon Soderstrom was elevated to the leader’s chief of staff. The previous chief of staff, Kyle Simmons, departed earlier this year.

McConnell also announced the addition of two new policy advisers. Denzel McGuire, formerly the deputy staff director for Minority Whip Jon Kyl (R-Ariz.), will become McConnell’s budget, appropriations and education policy adviser. Jon Lieber, who comes from the Senate Republican Policy Committee, will advise the leader on taxes, banking, financial regulation and other economic matters.