Redistricting maps must be completed by Jan. 24 to be included in the May primary election.
The former Senate majority leader has served more than 20 years in the Legislature.
The firm Envoy Sage will focus on the 2020 presidential election and the May 2020 primary.
Democrat Lori Dumas will become the 1st person of color on the 10-member court.
If the undated mail-in ballots are counted, state House Republicans have threatened to impeach the Lehigh County election board.