Iowa-1848, Dem

plurality 1,009: 1852, Dem. majority 303; 1856, Rep. plurality 7,784; 1860, Rep. majority 12,487; 1864, Rep. majority 39,479; 1868, Rep. majority 46,539; 1872, Rep. majority 58,149; 1876, Rep. majority 50,191; 1880, Rep. majority 45,732; 1884, Rep. plurality 19,796; 1888, Rep. plurality 81,721; 1892, Rep. plurality 22,965.