Pascual Ortiz Rubio was a Mexican politician and the President of Mexico from 1930 to 1932. He was one of three Mexican presidents to serve out the six-year term of assassinated president-elect Álvaro Obregón, while former president Plutarco Elías Calles retained power in a period known as the Maximato. Calles was so blatantly in control of the government that Ortiz Rubio resigned the presidency in protest in September 1932.