ocr: Congress Senate House President Major legislation THE BOTH (1947-481 G.O.P. G.O.P. Truman Though it was the most successfulelection for the Republicans since the 1920s, 51-45 246-188 of his: President successors, Truman rejectng during his 75 first bills: sent term by exercised what he his called veto the power more Do-Nothing" than any Congress. The most significant piece of domestic egislation passed was the Tafl- Hartley Labor-Mlanagement Relations Act, which outlawed closed shops and secondary boycotts by unions. It passed over Truman's veto in, June 1947. THE 81ST (1949-50) Dems Dems Trum ...