He became involved in politics and was a member of the Rhode Island State Senate from 1845 to 1853. Davis was elected to the
Thirty-third Congress, and served from March 4, 1853, to March 3, 1855. While in Congress, he was outspoken about his disapproval of the
Kansas-Nebraska Act. In 1854, he was an unsuccessful candidate for reelection to the Thirty-fourth Congress, and returned to his manufacturing pursuits. Davis hoped to return to Congress, and was an unsuccessful candidate for election to the Thirty-sixth, Forty-second, Forty-third, and Forty-sixth Congresses. He served in the State Senate again in 1877 and 1878, and was a member of the State House from 1887 to 1890. He was an abolitionist and was against the real estate requirement for voting that Rhode Island imposed upon
naturalized citizens. Davis was on the
North Providence, Rhode Island executive school committee, and was a member of the
Rhode Island Historical Society. ==Death and legacy==