Hoar was elected to the
Massachusetts House of Representatives in 1852 and to the
Massachusetts Senate in 1857. He represented Massachusetts as a member of the
U.S. House of Representatives for four terms from 1869 to 1877 and then served in the
U.S. Senate until his death during his fifth term. For one term during his House service, from 1873 to 1875, his brother
Ebenezer Rockood Hoar served alongside him. He was a Republican, but generally avoided heavy partisanship, and did not hesitate to criticize other members of the party whose actions or policies he believed were in error. Between 1856 and 1857 Hoar was active as a Kansas
Free-Stater, supported the
Freedmen's Bureau, and took a leading part in
reconstruction legislation. He took part in the investigation of the
Crédit Mobilier scandal and the impeachment of
William W. Belknap,
President Grant's secretary of war. An
economic nationalist, Hoar believed in
capitalism as progress for civilization in accordance to the plans by God. although it became law in a weakened form. - out of context. He opposed the
Chinese Exclusion Act of 1882, describing it as "nothing less than the legalization of racial discrimination" He was a member of the
Congressional Electoral Commission that settled the highly disputed
1876 U.S. presidential election. He authored the
Presidential Succession Act of 1886. During the
1884 United States presidential election, Hoar expressed sharp anger at
Mugwumps, Republicans who supported
Bourbon Democrat Grover Cleveland over GOP nominee
James G. Blaine; he asserted to a friend who supported Cleveland: Hoar was a consistent opponent of American imperialism. He did not share his Senate colleagues' enthusiasm for American intervention in Cuba in the late 1890s. In December 1897, he met with Native Hawaiian leaders
opposed to the annexation of their nation. He then presented the
Kūʻē Petitions to Congress and helped to defeat President
William McKinley's attempt to annex the
Republic of Hawaii by treaty, though the islands were eventually annexed by means of
joint resolution, called the
Newlands Resolution. After the
Spanish–American War, Hoar became one of the Senate's most outspoken opponents of the
imperialism of the McKinley and Roosevelt administrations. He denounced the
Philippine–American War and called for independence for the
Philippines in a three-hour speech in the Senate, saying: By this time, one of his strongest opponents on the pro-imperialist side was his fellow Massachusetts senator
Henry Cabot Lodge, who was a leading advocate for the
Treaty of Paris. Hoar pushed for and served on the
Lodge Committee, investigating allegations, later confirmed, of
United States war crimes in the Philippine–American War. He also denounced the
U.S. intervention in Panama. Hoar voted against the
Chinese Exclusion Act. ==Other interests==