The Decline of Union Power The changing conditions of the 1980s and 1990s undermined the position of 104

organized labor, which now represented a shrinking share of the work force. While more than one-third of employed people belonged to unions in 1945, union membership fell to 24.1 percent of the U.S. work force in 1979 and to 13.9 percent in 1998. Dues increases, continuing union contributions to political campaigns, and union members' diligent voter-turnout efforts kept unions' political power from ebbing as much as their membership. But court decisions and National Labor Relations Board rulings allowing workers to withhold the portion of their union dues used to back, or oppose, political candidates, undercut unions' influence.