 He was clerk of the Delaware House of Representatives in 1857 and during the Civil War served as commissioner of the federal army's draft for New Castle County in 1862.Lore served as Delaware Attorney General from 1869 to 1874 and was elected as a Democrat to the 48th and 49th Congress, serving from March 4, 1883, to March 3, 1887.He was not a candidate for renomination, and was appointed Chief Justice of the Delaware Supreme Court in 1893.