 With that arms and ammunition began flowing to revolutionary armies loyal to Obregón.Since Obregón had named his fellow Sonoran general, Plutarco Elías Calles, as his successor, Obregón was imposing a "little known nationally and unpopular with many generals," thereby foreclosing the ambitions of fellow revolutionaries, particularly his old comrade Adolfo de la Huerta.De la Huerta staged a serious rebellion against Obregón.