*Party division totals are based on election day results.
Republican congressional majorities weakened after the 1926 elections. The 70th Congress (1927–1929) tackled a number of natural resources initiatives: flood control along the Mississippi River; a survey of national forest reserves; and a dam project along the Colorado River. President Calvin Coolidge again vetoed the McNary—Haugen farm-subsidy bill and later pocket vetoed a bill to complete a major government power facility at Muscle Shoals, Alabama, in the Tennessee Valley.
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1Elected Sunday March 3, 1929.
2Died in office, November 19, 1928.
3Resigned February 1, 1927. See, Washington Post, February 1, 1927: 4.
4Appointed due to Fess' retirement. See, Washington Post, February 1, 1927: 4.