Because U.S. labor law has remained largely unchanged since the Landrum-Griffin Act of 1959, the decisions of the NLRB are predictable and generally insulated from political influence.

Landrum-Griffin Act

A US federal law enacted in 1959 to regulate labor unions' internal affairs and their officials' relationships with employers.

NLRB

The National Labor Relations Board, a U.S. federal agency responsible for enforcing U.S. labor law in relation to collective bargaining and unfair labor practices.

Political Influence

The power to affect governmental actions, policies, or decisions, often exercised through lobbying or electoral activities.