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{{Officeholder
|name=Robert A. Alphonso Taft, Sr.|image=Robert A. taft painting.jpg
|party=[[Republican]]
|spouse=Martha Wheaton Bowers
}}
}}
[[ImageFile:Taft40.jpg|thumb|260px|''Time'' Jan. 29, 1940]]
'''Robert Alphonso Taft, Sr.''' (1889–1953), son of President [[William Howard Taft]], was a leading Republican Senator, 1938–53, and was known as "Mr. Republican". He was a leader of the [[Conservative Coalition]], working with southern Democrats to control Congress. Little major legislation passed the Senate against his objections. His crowning achievement was writing and passing, over President [[Harry Truman|Truman]]'s veto, the [[Taft-Hartley Act]] of 1947. It balanced the interests of unions, management and the public.