Which act prohibited the use of unfair labor practices associated with union pressures?

The Taft-Hartley Act is significant because it was designed to restrict the activities and power of labor unions, particularly addressing unfair labor practices associated with union pressures. Enacted in 1947, this legislation aimed to balance the power between labor unions and employers, ensuring that both parties had fair rights during negotiations.

One of the key provisions of the Taft-Hartley Act is its limitation on union activities that could be considered coercive. It prohibits unions from engaging in secondary boycotts, jurisdictional strikes, and closed shops, which could impose undue pressure on employers or other businesses. This was a response to concerns about the unchecked power of unions and their influence on labor relations.

In contrast, other acts listed have different focuses. The Davis-Bacon Act mandates payment of local prevailing wages on public works projects, while the Norris-LaGuardia Act restricts the use of injunctions in labor disputes and protects workers' rights to organize. The Wagner Act, also known as the National Labor Relations Act, was designed to protect the rights of workers to organize and collectively bargain but did not impose restrictions on union activities. These differences highlight why the Taft-Hartley Act is the correct answer in the context of prohibiting unfair labor practices associated