his release from state prison. He was expelled from the union in 1928, however, for submitting false audit reports on behalf of his local union. In 2006, Journalist Robert Fitch described the Ironworkers Union bombings as perhaps the largest domestic terrorism campaign in American history, and further notes the Los Angeles Times bombing and subsequent trials as marked a precipitous decline in labor union power in the Los Angeles area. Battles with the AFL, employers and the IWW The Iron Workers soon found themselves at war with the AFL and, in particular, the United Brotherhood of Carpenters and Joiners of America. The Carpenters claimed that pile-driving work, which was done primarily by Iron Workers in many areas, belonged to them and convinced the Building Trades Department to go along with them. When the Iron Workers refused to relinquish this work the AFL suspended it from membership in 1917. Other unions, such as the Lathers, then claimed that work that had historically been done by iron workers belonged to them instead. Unable to call on the support of other AFL unions in its fights with employers, the Iron Workers relented the following year and ceded pile driving work, with the exception of work related to bridge building, to the Carpenters. These fissures contributed to an extent to the failure of the Iron Workers' New York City strike, called in 1921 to resist the American Plan, the open shop movement that reversed much of the labor movement's gains, particularly in construction, of the previous decade. When the strike failed, the union sued the employers, also without success. The union survived, but in a much weaker state. The union also fought the Industrial Workers of the World, which had won leadership in a number of its west coast locals in the era after World War I. International President Morrin expelled some dissident locals and sued others to regain the locals' property. By 1928 the rebellion was over. The Great Depression and the New Deal The union lost roughly half of its members in the early 1930s. While the passage of the Davis–Bacon Act required payment of the prevailing wage on federal construction projects, the desperate shortage of work allowed some employers to force their employees to pay kickbacks to them to hold on to their jobs. A number of union members hopped freight cars to go in search for work. At the same