Which act was designed to counteract the Wagner Act?

The Taft-Hartley Act was enacted in 1947 with the primary aim of balancing the power between labor unions and employers, effectively counteracting certain provisions of the Wagner Act (National Labor Relations Act) of 1935. The Wagner Act had established the legal right of workers to organize, join labor unions, and engage in collective bargaining, providing strong protections for labor unions. In contrast, the Taft-Hartley Act introduced measures that placed restrictions on unions, such as prohibiting secondary boycotts, jurisdictional strikes, and closed shops, and allows states to pass right-to-work laws. This act was designed to curtail union power and provide protections for workers against what were perceived as excessive union influence.

The options related to employee retirement, family leave, or worker adjustment notifications do not address the balance of power between unions and employers or the labor relations framework, hence they do not relate to the purpose of the Taft-Hartley Act in countering the Wagner Act.