summer of 1907, the WFM withdrew from the IWW, Vincent St. John left the WFM to spend his time organizing the IWW. Bill Haywood for a time remained a member of both organizations. His murder trial had made Haywood a celebrity, and he was in demand as a speaker for the WFM. However, his increasingly radical speeches became more at odds with the WFM, and in April 1908, the WFM announced that the union had ended Haywood's role as a union representative. Haywood left the WFM, and devoted all his time to organizing for the IWW. Historian Vernon H. Jensen has asserted that the IWW had a "rule or ruin" policy, under which it attempted to wreck local unions which it could not control. From 1908 to 1921, Jensen and others have written, the IWW attempted to win power in WFM locals which had once formed the federation's backbone. When it could not do so, IWW agitators undermined WFM locals, which caused the national union to shed nearly half its membership. IWW versus the Western Federation of Miners The Western Federation of Miners left the IWW in 1907, but the IWW wanted the WFM back. The WFM had made up about a third of the IWW membership, and the western miners were tough union men, and good allies in a labor dispute. In 1908, Vincent St. John tried to organize a stealth takeover of the WFM. He wrote to WFM organizer Albert Ryan, encouraging him to find reliable IWW sympathizers at each WFM local, and have them appointed delegates to the annual convention by pretending to share whatever opinions of that local needed to become a delegate. Once at the convention, they could vote in a pro-IWW slate. St. Vincent promised: "once we can control the officers of the WFM for the IWW, the big bulk of the membership will go with them." But the takeover did not succeed. In 1914, Butte, Montana, erupted into a series of riots as miners dissatisfied with the Western Federation of Miners local at Butte formed a new union, and demanded that all miners join the new union, or be subject to beatings or worse. Although the new rival union had no affiliation with the IWW, it was widely seen as IWW-inspired. The leadership of the new union contained many who were members of the IWW, or agreed with the IWW's methods and objectives.