 In 1931, he was appointed as a Deputy Assistant New York Attorney General, working in the Security Frauds Bureau.Joseph was elected on December 28, 1933, to the New York State Senate (21st D.) to fill the vacancy caused by the resignation of Henry G. Schackno.He remained in the State Senate until 1945, sitting in the 157th, 158th, 159th, 160th, 161st, 162nd, 163rd, 164th and 165th New York State Legislatures.