Republicans in both congressional chambers selected new campaign committee chairs Tuesday, putting Rep. Brian Jack of Georgia and Sen. Bernie Moreno of Ohio in charge of their efforts to win back House and Senate majorities.

Jack, a former political adviser to President Donald Trump, will lead the National Republican Congressional Committee, the party’s House campaign arm. He will succeed Rep. Richard Hudson of North Carolina, who lost his election Tuesday.

Jack secured the post in a House Republican conference vote, defeating Rep. Rudy Yakym of Indiana by a margin of 125 to 53. The result gives Jack responsibility for directing the committee as Republicans plan their campaign for control of the House.

In the Senate, Republicans chose Moreno to chair the National Republican Senatorial Committee, which oversees the party’s Senate campaign efforts. Moreno was unopposed and was approved by acclamation.

Moreno will succeed Sen. Tim Scott of South Carolina in the campaign committee’s top role. His selection, alongside Jack’s, completes a change in leadership at both of the GOP’s congressional campaign organizations.

The two committees will play central roles in Republicans’ efforts to return to the majority in their respective chambers. Jack takes over after a contested vote among House Republicans, while Moreno assumes his position with no challenger.