National Labor Relations Act

The NLRA created the NLRB and empowered it to administer and enforce the Act. The NLRB was originally comprised of three members who served five-year terms, but subsequently was expanded to five members in 1947. Although not mandated by law, it is customary that no more than three of the five NLRB members may belong to the sitting president’s political party at any given time, and the political ideology of the members frequently influences how they approach particular issues.​