Francisco I. Madero

Madero set out campaigning across the country and everywhere he was met by tens of thousands of cheering supporters. Finally, in June 1910, the Porfirian regime had him arrested in Monterrey and sent to a prison in San Luis Potosí. Approximately 5,000 other members of the Anti-Reelectionist movemnt were also jailed. Francisco Vázquez Gómez took over the nomination, but during Madero's time in jail, Díaz was "elected" as president with an electoral vote of 196 to 187.

Madero's father used his influence with the state governor and posted a bond to gain Madero the right to move about the city on horseback during the day. On October 4, 1910, Madero galloped away from his guards and took refuge with sympathizers in a nearby village. He was then smuggled across the U.S. border, hidden in a baggage car by sympathetic railway workers.

Madero set up shop in San Antonio, Texas, and quickly issued his Plan of San Luis Potosí, which had been written during his time in prison, partly with the help of Ramón López Velarde. The Plan proclaimed the elections of 1910 null and void, and called for an armed revolution to begin at 6 p.m. on November 20, 1910, against the illegitimate presidency/dictatorship of Díaz. At that point, Madero would declare himself provisional President of Mexico, and called for a general refusal to acknowledge the central government, restitution of land to villages and Indian communities, and freedom for political prisoners.

On November 20, 1910, Madero arrived at the border and planned to meet up with 400 men raised by his uncle Catarino to launch an attack on Ciudad Porfirio Díaz (modern-day Piedras Negras, Coahuila). However, his uncle showed up late and brought only ten men. As such, Madero decided to postpone the revolution. Instead he and his brother Raúl (who had been given the same name as his late brother) traveled incognito to New Orleans, Louisiana.

In February 1911 he entered Mexico and led 130 men in an attack on Casas Grandes, Chihuahua. He spent the next several months as the head of the Mexican Revolution. Madero successfully imported arms from the United States, with the American government under William Howard Taft doing little to halt the flow of arms to the Mexican revolutionaries. By April, the Revolution had spread to eighteen states, including Morelos where the leader was Emiliano Zapata.
Corrido sheet music celebrating the entry of Francisco Madero into Mexico City in 1911.

On April 1, 1911, Porfirio Díaz claimed that he had heard the voice of the people of Mexico, replaced his cabinet, and agreed to restitution of the lands of the dispossessed. Madero did not believe Díaz and instead demanded the resignation of President Díaz and Vice President Ramón Corral. Madero then attended a meeting with the other revolutionary leaders – they agreed to a fourteen-point plan which called for pay for revolutionary soldiers; the release of political prisoners; and the right of the revolutionaries to name several members of cabinet. Madero was moderate, however. He believed that the revolutionaries should proceed cautiously so as to minimize bloodshed and should strike a deal with Díaz if possible. In May, Madero wanted a ceasefire, but his fellow revolutionaries Pascual Orozco and Francisco Villa disagreed and went ahead with an attack on Ciudad Juárez. The revolutionaries won this battle decisively and on May 21, 1911, the Treaty of Ciudad Juárez was signed.

Under the terms of the Treaty of Ciudad Juárez, Díaz and Corral agreed to resign by the end of May 1911, with Díaz's Minister of Foreign Affiars, Francisco León de la Barra, taking over as interim president solely for the purpose of calling general elections.

This first phase of the Mexican Revolution thus ended with Díaz leaving for exile in Europe at the end of May 1911. On June 7, 1911, Madero entered Mexico City in triumph where he was greeted with huge crowds shouting "Viva Madero!