Michael Billet Michael Billet
Director, Policy Research, Employment Policy, U.S. Chamber of Commerce

Published

October 13, 2026

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For decades, the Teamsters built their strength in trucking, freight, warehousing, package delivery, and other private-sector industries. Increasingly, however, the union is pursuing growth in government workplaces and taxpayer-funded or taxpayer-administered services. If that trend continues, the union’s future may be shaped less by the priorities of private-sector workers and more by the concerns of government employees.

That raises an important question: Why would private-sector workers join a union whose center of gravity is steadily shifting away from the industries that originally defined it?

Teamsters President Sean O’Brien has identified public-sector growth as a major priority for the union, saying that this part of the union will surpass UPS as the largest division. If that prediction proves accurate, workers in trucking, logistics, warehousing, and package delivery could become a smaller share of the coalition driving the Teamsters’ priorities. A union historically focused on negotiating with private employers would increasingly derive its strength from workers whose pay, benefits, and working conditions are often tied to government budgets and public policy decisions.

Workers in the transportation sector represented by the Teamsters may reasonably expect a union’s resources, political capital, and leadership attention to remain focused on bargaining over terms and conditions of employment, including scheduling, pay, and benefits. As public-sector membership grows, however, the union’s resources may be diverted to government funding, public services, and taxpayer-supported employment.

Membership composition often shapes institutional policies. As the Teamsters expand into government and government-related services, leadership will face growing pressure to represent members whose interests differ from those of traditional private-sector workers. Debates over public spending, government contracting, municipal budgets, and taxpayer-funded services could become increasingly important within a union once primarily focused on negotiating with private employers in competitive markets.

This trend is visible in sectors such as sanitation, waste, recycling, transportation, and public works, where labor policy often intersects with public policy. The Teamsters' organizing efforts among Denver city employees, including solid-waste and public-works personnel, demonstrate the union’s growing presence in municipal government. Similarly, the union supported California legislation affecting municipal waste-management contracts while representing workers employed by vendors in that sector. Together, these examples show how public-sector growth can expand a union’s role beyond collective bargaining and into broader policy debates.

Despite Sean O’Brien’s rhetoric, what remains to be seen is how far the Teamsters will expand into the public sector and what that means for the union's identity. Similar to how the UAW has expanded its membership by organizing higher education employees rather than auto workers, the Teamsters will face the dilemma of which sector of the economy does the union purport to represent and how can these at times competing factions be united when their interests differ.

For workers in trucking, logistics, warehousing, and package delivery, the question is:Given the direction the Teamsters are headed, do you want to sign up for a union that will likely abandon your interests when push comes to shove?

About the author

 Michael Billet

Michael Billet

Michael Billet, director of policy research for Employment Policy at the U.S. Chamber of Commerce, keeps members and internal Chamber policy staff abreast of pending labor, immigration, and health care legislation, as well as federal regulatory and subregulatory activities. He is also responsible for planning the Chamber’s annual workplace and community wellness forum.

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