Hammer was a member of the New York State Senate (14th D.) from 1945 to 1948, sitting in the 165th and 166th New York State Legislatures. In November 1948, he ran for re-election, but was defeated by Democrat Mario M. DeOptatis. Parisi was a delegate to the 1948, 1952, 1956, 1960 and 1964 Republican National Conventions.