That development forced GM to bargain with the union. John L. Lewis, President of the United Mine Workers and founder and leader of the Congress of Industrial Organizations, spoke for the UAW in those negotiations; UAW President Homer Martin was sent on a speaking tour to keep him out of the way. GM's representatives refused to be in the same room as the UAW's, so Governor Frank Murphy acted as a courier and intermediary between the two groups. Governor Murphy sent in the U.S. National Guard, not to evict the strikers, but rather to protect them from the police and corporate strike-breakers. The two parties finally reached agreement on February 11, 1937, on a one-page agreement that recognized the UAW as the exclusive bargaining representative for GM's employees who were members of the union for the next six months.