Final answer:
The statement suggesting that the Taft-Hartley Act protects employees who resign from the union and cross picket lines and allows the union to fine such employees is false. The Taft-Hartley Act limited union powers but did not provide specific protection for crossing picket lines or address union-imposed fines.
Step-by-step explanation:
The statement that an employee may resign from the union during a strike, cross picket lines, and be protected under the Taft-Hartley Act, but the union may impose a one-time fine for crossing the union's picket line is false. The Taft-Hartley Act, passed by Congress over President Truman's veto in 1947, restricted many powers of unions including the rules which mandated workers to join unions. It does not provide specific protections for employees who resign from a union to cross a picket line, and it also does not address the union's internal disciplinary measures such as imposing fines on members who cross picket lines.
The Act indeed restricted union activities, such as eliminating closed shops and requiring labor leaders to disavow Communist affiliations. Moreover, it permitted states to pass 'right-to-work' laws and granted presidential authority to invoke an 80-day 'cooling-off period' to postpone any strike that might affect national interests. These measures sought to balance the union power with the interests of employers and the government. However, whether a union can fine an employee for crossing a picket line would often fall under specific union rules and state laws rather than the federal Taft-Hartley Act.