The article examines the shift of decisions of the U.S. National Labor Relations Board from pro-labor to pro-management. It argues that the Board's previous pro-labor stance under the Wagner Act of 1935 has changed with the advent of the Taft-Hartley Act. This shift can be seen in major decisions of the Board concerning basis of collective bargaining, determination of bargaining in multiple plants of a single employer, employer's right to influence union activity, union activity which absolves employer of a charge of unfair labor practice, basis of bargaining in good faith, identity of the petitioner for an election and the length of time a union's certification may remain unchallenged.