Claim: Eugene Casserly (November 13, 1820 – June 14, 1883) was politician under the Democratic political party, one of the two major contemporary political parties in the United States.
Evidence: Eugene Casserly (November 13, 1820 – June 14, 1883) was an Irish-American journalist and lawyer. Casserly was elected as a Democrat to the United States Senate in 1868, where he served from March 1869 until his resignation on November 29, 1873. The Democratic Party is one of the two major contemporary political parties in the United States, along with its main, historic rival, the Republican Party.