Isaac Wayne MacVeagh (April 19, 1833January 11, 1917) was an American lawyer, politician and diplomat. He served as the 36th Attorney General of the United States under the administrations of Presidents James A. Garfield and Chester A. Arthur. Biography Early life MacVeagh was born in Phoenixville, Pennsylvania, on April 19, 1833, the son of Major MacVeagh and Margaret (née Lincoln) McVeagh. His brother, Franklin MacVeagh, was a Chicago wholesale grocer, banker and U.S. Secretary of the Treasury under President William Howard Taft. He attended Yale University, where he was a brother of the Delta Kappa Epsilon fraternity (Phi chapter), and graduated tenth in his class in 1853. He was admitted to the bar in 1856, and was the District Attorney of Chester County, Pennsylvania, from 1859 through 1864. During the American Civil War he joined the emergency militia of Pennsylvania that was organized against the threat of Confederate invasion in 1862 and 1863. He raised an independent cavalry company and later served in the 29th Emergency Militia Regiment, reaching the rank of major. Politician and lawyer MacVeagh became a leader in the Republican Party, and was a prominent opponent of his father-in-law, Simon Cameron, in the fight within the party in 1871. He was the Ambassador to the Ottoman Empire in 1870 through 1871, and was a member of the state constitutional convention of 1872 and 1873. In 1875, MacVeagh co-founded the Philadelphia-based law firm known today as Dechert LLP. He also served as Chairman of the MacVeagh Commission, sent in 1877 by President Rutherford B. Hayes to Louisiana, which secured the settlement of the contest between two existing state governments and thus made possible the withdrawal of U.S. troops from the state. MacVeagh served as the 36th Attorney General in 1881 under President James A. Garfield. He resigned after President Garfield's assassination. Chester Arthur was to be 21st President and MacVeagh served as a cabinet member. In 1892, he supported Grover Cleveland, the Democratic nominee for the presidency, and from 1893 to 1897 he served as Ambassador to Italy. He returned to the Republican Party in 1896. In 1903, he was an chief counsel of the United States before the Hague tribunal in the case regarding the claims of Germany, Britain and Italy against the republic of Venezuela. After the outbreak of World War I MacVeagh championed the cause of the Allies in an article "The Impossible Chasm", contributed