Estrada Cabrera continued in power until forced to resign after new revolts in 1920. By that time his power had declined drastically and he was reliant upon the loyalty of a few generals. While the United States threatened intervention if he was removed through revolution, a bipartisan coalition came together to remove him from the presidency. He was removed from office after the national assembly charged that he was mentally incompetent, and appointed Carlos Herrera in his place on 8 April 1920.