<P> The Labor Management Relations Act of 1947 29 U.S.C. § 141 - 197 better known as the Taft -- Hartley Act , ( 80 H.R. 3020 , Pub. L. 80 -- 101 , 61 Stat. 136 , enacted June 23 , 1947 ) is a United States federal law that restricts the activities and power of labor unions . The act , still effective , was sponsored by Senator Robert A. Taft and Representative Fred A. Hartley , Jr. , and became law by overcoming U.S. President Harry S. Truman 's veto on June 23 , 1947 ; labor leaders called it the `` slave - labor bill '' while President Truman argued that it was a `` dangerous intrusion on free speech , '' and that it would `` conflict with important principles of our democratic society . '' Nevertheless , Truman would subsequently use it twelve times during his presidency . The Taft -- Hartley Act amended the National Labor Relations Act ( NLRA ; informally the Wagner Act ) , which Congress passed in 1935 . The principal author of the Taft -- Hartley Act was J. Mack Swigert , of the Cincinnati law firm Taft , Stettinius & Hollister . </P>
<P> The Labor Management Relations Act of 1947 29 U.S.C. § 141 - 197 better known as the Taft -- Hartley Act , ( 80 H.R. 3020 , Pub. L. 80 -- 101 , 61 Stat. 136 , enacted June 23 , 1947 ) is a United States federal law that restricts the activities and power of labor unions . The act , still effective , was sponsored by Senator Robert A. Taft and Representative Fred A. Hartley , Jr. , and became law by overcoming U.S. President Harry S. Truman 's veto on June 23 , 1947 ; labor leaders called it the `` slave - labor bill '' while President Truman argued that it was a `` dangerous intrusion on free speech , '' and that it would `` conflict with important principles of our democratic society . '' Nevertheless , Truman would subsequently use it twelve times during his presidency . The Taft -- Hartley Act amended the National Labor Relations Act ( NLRA ; informally the Wagner Act ) , which Congress passed in 1935 . The principal author of the Taft -- Hartley Act was J. Mack Swigert , of the Cincinnati law firm Taft , Stettinius & Hollister . </P>
what legislation limited the power and influence of labor unions
what legislation limited the power and influence of labor unions
The Labor Management Relations Act of 1947 29 U.S.C. § 141 - 197 better known as the Taft -- Hartley Act , ( 80 H.R. 3020 , Pub. L. 80 -- 101 , 61 Stat. 136 , enacted June 23 , 1947 )
The Labor Management Relations Act of 1947 29 U.S.C. § 141 - 197 better known as the Taft -- Hartley Act , ( 80 H.R. 3020 , Pub. L. 80 -- 101 , 61 Stat. 136 , enacted June 23 , 1947 )