He left a personal account of the revolution, titled A Revolução Portuguesa: Relatório de Machado Santos ("The Portuguese Revolution: A Report by Machado Santos", published in 1911), one of the most complete accounts of the preparation of the revolutionary movement.[1]
Soon after the Republican Party started to split into different parties, he was opposed to the politics of those put in power following the revolution. He founded and published the opposition newspaper O Intransigente ("The Intransigent"). He established the Reformist Party and took part in the failed military coup of 27 April 1913 that aimed to topple Afonso Costa's government, and later, in 1915, supported General Pimenta de Castro's government. On 13 December 1916, he led the failed Tomar Revolt and was briefly arrested; in 1917, he was part of Sidónio Pais's military junta and government cabinets, until Pais's assassination in 1918.[2]
^ abcdSilva, Armando Malheiro da; Cordeiro, Carlos; Torgal, Luís Filipe Reis (2011). "A República de António Maria de Azevedo Machado Santos (1875-1921)" [The Republic of António Maria de Azevedo Machado Santos (1875-1921)]. República, republicanismo e republicanos: Brasil, Portugal, Itália [Republic, republicanism, and republicans: Brazil, Portugal, Italy] (in Portuguese). Coimbra: Imprensa da Universidade de Coimbra. ISBN978-989-26-0497-8. Archived from the original on 9 December 2019. Retrieved 23 July 2018.