After his Senate tenure , Fields was from 1922 to 1925 the district attorney for his adopted Union Parish . From 1926 to 1929 , he was the chairman of the Louisiana Democratic State Central Committee . He was a delegate to the 1924 ( alternate ) , 1928 , 1932 , and the 1936 Democratic National Conventions . He succeeded Huey Pierce Long Jr. , on the elected Louisiana Public Service Commission in the then Third PSC District , a position which he filled from 1927 to 1936 . Earlier , Fields had briefly been Long 's law partner in Shreveport . From 1937 to 1941 , Fields was the United States Attorney for the United States District Court for the Western District of Louisiana , based in Shreveport , an appointment under the administration of U.S. President Franklin D. Roosevelt . In 1939 , Fields assigned his assistant attorney and subsequent successor , Malcolm Lafargue , also a native of Marksville , to prosecute the Louisiana Hayride scandals in the forty parishes within the Western District
1924 ( alternate )
1924 Democratic National Convention
Harvey Fields