1867 and then re-established on the same year. 1867 Constitution The Political Constitution of Peru () was approved by the Constituent Assembly on August 29, 1867, and promulgated on the same day by provisional president Mariano Ignacio Prado. Its extremely liberal nature led to a civil war which ended Prado's presidency and re-established the 1860 constitution. 1920 Constitution The Constitution for the Republic of Peru () was approved on December 27, 1919, and promulgated by president Augusto B. Leguía on January 18, 1920. Of progressive nature, many of its contents were not enforced up until its replacement in 1933. 1933 Constitution The Political Constitution of Peru () was promulgated on April 9, 1933, by president Luis Miguel Sánchez Cerro. The Revolutionary Government of the Armed Forces of Peru established in 1968 after a successful coup d'état was the last to follow the constitution until its second phase, where president Francisco Morales Bermúdez called for a new constitution to be established and for general elections to be held. 1979 Constitution The Constitution for the Republic of Peru () was promulgated on 12 July 1979 by a Constituent Assembly elected in June 1978 following 10 years of military rule and replaced the suspended 1933 Constitution. It became effective in 1980 with the re-election of deposed President Fernando Belaúnde Terry. It limited the president to a single five-year term and established a bicameral legislature consisting of a 60-member Senate (upper house) and a 180-member Chamber of Deputies (lower house). It also eliminated the literacy requirement for voting and extended suffrage to all adults 18 or older. Proposed reform Fujimorism has held power over much of Peruvian society through maintaining control of institutions and legislation created in the 1993 constitution, which was written by Alberto Fujimori and his supporters without opposition participation. Due to broadly interpreted impeachment wording in the 1993 Constitution of Peru, the Congress can impeach the President of Peru without cause, effectively making the legislature more powerful than the executive branch. Beginning with Pedro Pablo Kuczynski, the Fujimorist Congress used this impeachment procedure liberally, also impeaching Martín Vizcarra and Pedro Castillo. Notable public support for a constituent assembly and a new constitution began during the 2020 Peruvian protests. Support for a new constitution increased even further following the self-coup attempt by President Castillo and the subsequent 2022–2023 Peruvian political protests. According to IEP polling from January 2023, when asked if they