 In the first session of the 115th United States Congress, Mast was ranked the 32nd most bipartisan member of the House by the Bipartisan Index, a metric published by The Lugar Center and Georgetown's McCourt School of Public Policy to assess congressional bipartisanship.Mast, who sits on the House Veterans Affairs Committee, was the first Member of Congress to open an office inside a federal agency.The office in question, which was opened in 2018, was inside the West Palm Beach Veterans Affairs facility.