Committee positions:Committee positions Chair of the Senate Appropriations CommitteeIncumbentAssumed office, January 3, 2025Preceded byPatty MurrayVice Chair of the Senate Appropriations CommitteeIn office, January 3, 2023 – January 3, 2025Preceded byRichard ShelbySucceeded byPatty MurrayChair of the Senate Aging CommitteeIn office, January 3, 2015 – February 3, 2021Preceded byBill NelsonSucceeded byBob Casey Jr.Ranking Member of the Senate Aging CommitteeIn office, January 3, 2013 – January 3, 2015Preceded byBob CorkerSucceeded byClaire McCaskillRanking Member of the Senate Homeland Security CommitteeIn office, January 3, 2007 – January 3, 2013Preceded byJoe LiebermanSucceeded byTom CoburnChair of the Senate Homeland Security and Governmental Affairs CommitteeIn office, January 3, 2003 – January 3, 2007Preceded byJoe LiebermanSucceeded byJoe Lieberman, Incumbent, Assumed office, January 3, 2025, Patty Murray, In office, January 3, 2023 – January 3, 2025, Richard Shelby, Patty Murray, In office, January 3, 2015 – February 3, 2021, Bill Nelson, Bob Casey Jr., In office, January 3, 2013 – January 3, 2015, Bob Corker, Claire McCaskill, In office, January 3, 2007 – January 3, 2013, Joe Lieberman, Tom Coburn, In office, January 3, 2003 – January 3, 2007, Joe Lieberman, Joe Lieberman