 Incumbent Democratic Congressman Thomas S. McMillan of the 1st congressional district, in office since 1925, was unopposed in his bid for re-election.Incumbent Democratic Congressman Butler B. Hare of the 2nd congressional district, in office since 1925, won the Democratic primary and was unopposed in the general election.Incumbent Democratic Congressman Frederick H. Dominick of the 3rd congressional district, in office since 1917, was unopposed in his bid for re-election.