The Plan de San Luis Potosí

On 5 October 1910, Madero issued a "letter from jail," known as the Plan de San Luis Potosí, with its main slogan Sufragio Efectivo, No Re-elección ("free suffrage and no re-election"). It declared the Díaz presidency illegal and called for revolt against Díaz, starting on 20 November 1910. Madero's political plan did not outline major socioeconomic revolution, but it offered the hope of change for many disadvantaged Mexicans.