Green served three terms in the state senate,
South Dakota Legislature. He was elected in 1906, 1922 and 1924. He served on the
South Dakota Board of Charities and Corrections from 1913 to 1920. Green was elected
governor in 1930 and took office at the beginning of the
Great Depression. He inherited a massive state debt that he met with tax reform, budget reductions and the reorganization of the state's relief agencies. He reduced salaries from 10 to 20 percent and also had to deal with drought, a grasshopper plague, a crop failure and an exceptionally hard failure. He sought re-election in 1932 but was defeated by
Tom Berry. Green went back to his farm at Hazel. He was a delegate to the 1936
Republican National Convention. ==Death==