Attorney General Jeff Sessions’ decision to fire former FBI Deputy Director Andrew McCabe, which will likely reduce his pension benefits, has Democratic lawmakers and a key government employee union warning that Republicans are coming after federal workers.

Sessions fired McCabe just before the FBI veteran’s 50th birthday, stripping him of an early retirement option that by some estimates could have given him $60,000 per year in benefits immediately. Those will now be delayed until he’s at least 57 years old, at a cost of a few hundred thousand dollars to McCabe.