 IRS agents under Irey began investigating Louisiana Governor and later Senator Huey Long during Hoover administration but suspended the investigation following the election of Franklin Roosevelt.After several months awaiting guidance from the new administration, Irey received a go-ahead to restart the investigation from Treasury Secretary Henry Morgenthau, Jr.In his biography, Irey related the personal interest and direct intervention of FDR in the investigation of Long, another of his political enemies who was considering running for President against Roosevelt in 1936.