Pike was elected as a Republican to the Forty-third Congress (March 4, 1873 – March 3, 1875) and was an unsuccessful candidate for reelection in 1874 to the Forty-fourth Congress. He was elected as a Republican to the U.S. Senate after a lengthy deadlocked election in the New Hampshire Legislature and served from August 2, 1883, until his death. While in the Senate, he was chairman of the Committee on Claims (Forty-eighth and Forty-ninth Congresses). He died in Franklin, New Hampshire; interment was in Franklin Cemetery.
Personal life
Pike married twice; he married his second wife, Caroline White, in 1850 and had three children with her - Helen, Edward E., and Leila.[3] His daughter Helen married Frank Nesmith Parsons, Pike's law partner from 1879 until his death; Parsons was later Chief Justice of the New Hampshire Supreme Court (1902–1924).[4]