Union membership in the U.S. continues to decline, despite growing public support for organized labor. While nearly 67% of Americans approve of unions, only about 10% of workers belong to one. Several factors contribute to this trend, including the shift from manufacturing to service and gig-based work, aggressive anti-union tactics by employers, restrictive labor laws like right-to-work statutes, and a perception among some younger workers that unions are outdated. As traditional unions lose ground, new forms of worker advocacy are emerging, but the labor movement faces ongoing challenges in adapting to the modern workforce.