The White House is set to select outgoing Sen. Max Baucus (D-Mont.) as its pick for ambassador to China, Sen. Orrin Hatch (R-Utah) and a Baucus ally confirmed Wednesday.

Baucus, 72, previously announced that he won't seek reelection to the Senate in 2014.

Senate aides familiar with the plans said that the move has been in the works for several days.

The news was first reported by Politico. Baucus aides declined to comment Wednesday evening when asked about it outside the Senate Chamber.