Lindsey served in the Maine Senate from 1868 to 1870, sitting as its president in 1869, and he was once again a delegate to the Republican National Convention in 1868. He was a member of the Executive Council of Maine in 1874 before being elected as a Republican to the United States House of Representatives in 1876, where he served from 1877 to 1883, but he was not a candidate for renomination in 1882. Afterwards, he resumed practicing law, and he continued practicing until his death in Norridgewock on April 26, 1884. He was interred in River View Cemetery in Norridgewock.