The House Republicans’ political arm just elevated two New Jersey GOP candidates to their list of challengers they said could oust Democratic incumbents this fall. Former investment banker Frank Pallotta, in a rematch with Rep. Josh Gottheimer, D-5th Dist., and former Passaic County Assistant Prosecutor Paul DeGroot, challenging Rep. Mikie Sherrill, D-11th Dist., are the third and fourth New Jersey Republicans warranting extra attention from the National Republican Congressional Committee. The other two already are top priorities of the GOP committee: former state Senate Republican Leader Tom …