Explain two factors that have weakened labor unions.

1. Globalization: The rise of globalization has led to a decrease in manufacturing jobs in many developed countries. This has resulted in a decline in the number of workers in industries where unions have traditionally been strong, such as manufacturing and construction. As a result, labor unions have seen a decrease in their membership and influence.

2. Anti-union legislation: In recent years, many states in the United States have passed laws that weaken the power of labor unions. This includes right-to-work laws, which make it illegal for companies to require their employees to join a union as a condition of employment. Additionally, some states have passed laws that restrict the ability of unions to collect dues or engage in collective bargaining. These laws have made it harder for unions to organize and maintain their membership levels.