Final answer:
The statement is true; the Wagner Act gave unions significant power, which was subsequently counterbalanced by the Taft-Hartley Act's restrictions on union activities and requirements that impacted the organization and influence of labor unions.
Step-by-step explanation:
The statement that The Wagner Act gave unions considerable power, which had to be counterbalanced by the passage of the Taft-Hartley Act, is true. The National Labor Relations Act of 1935, more commonly known as the Wagner Act, strengthened labor rights by allowing workers to organize unions and engage in collective bargaining. However, the passage of the Taft-Hartley Act in 1947 marked a considerable shift in the legal landscape for labor unions in the United States. The Taft-Hartley Act restricted many of the powers of unions by banning certain labor practices, requiring union leaders to disclaim affiliations with communist organizations, and limiting the use of union funds in political campaigns.
Significant clauses of the Taft-Hartley Act included the banning of closed shops and union shops, prohibition of secondary boycotts, and the empowerment of states to pass "right-to-work" laws. These provisions drastically changed the previous advantages that unions enjoyed, causing a decline in their influence and union membership levels.