(The Center Square) — In a stunning upset, progressive Rep. Jamaal Bowman, D-N.Y., lost his seat in Tuesday’s Democratic primary, becoming the first member of the “squad” of liberal lawmakers to be ousted by a member of their own party. Bowman, who was seeking a third term representing New York’s 16th Congressional District, was trailing Westchester County Executive George Latimer by 54.8-45.2% with 50.9% of the votes counted when the Associated Press called the race at 9:40 p.m. “You do not need a campaign ad to tell you who George Latimer is; you have seen who I am,” Latimer said in his vict…