Armando Ríos Piter

Three months later, he announced his intention to run for president in 2018 as an independent candidate. By early February 2018, he had reached the signature requirement—one percent of the electoral rolls in at least 17 of Mexico's 32 states—to appear on the 2018 presidential ballot as an independent, becoming the second candidate to do so behind Jaime Rodríguez Calderón. However, Ríos Piter did not reach the required number of signatures to appear on the ballot.

On 14 February 2017, Ríos Piter announced he would leave the PRD in order to start a nonpartisan movement called the Movimiento Jaguar (Jaguar Movement). His departure brought to eight the number of defections from the PRD among the senators it had elected in 2012. In leaving the PRD, he declared his resignation not just from the party but from "an entire system that now only produces noise and confrontation".

In September 2016, Ríos Piter proposed legislation that would protect Mexicans should Donald Trump, as US president, inflict punishment on the country in order to fund the proposed border wall. He stressed that the economic welfare of the United States and Mexico was at stake. "At a time like this, it's vital for us to understand why this relationship benefits both. We're neighbors, we're friends, we're partners," he said. "He's putting (that) at risk."

With his three-year term up, the PRD successfully ran Ríos Piter for the Senate, for a six-year term to cover the LXII and LXIII Legislatures in 2012. He sat on six regular committees, being secretary on four of them, in the LXII Legislature, and in the LXIII Legislature, he presided over the Population and Development Commission while sitting on others related to public finances, corruption, and radio, television and film, among others. During his tenure, he mounted a bid to be the PRD gubernatorial candidate in 2015 in Guerrero, but he declined over his outrage that Jesús Ortega Martínez, part of another faction of the PRD known as "Los Chuchos", obligated him to sign a political pact with disgraced governor Ángel Aguirre Rivero to be the candidate. The Senate also named Ríos Piter as one of its designees to the Constituent Assembly of Mexico City, but his nomination failed to receive enough votes in the Senate.

In 2009, Ríos Piter was elected to the Chamber of Deputies for the LXI Legislature; his district was the only win for the PRD in Guerrero that year. He was one of the PRD's leaders in the chamber that legislature, being the head of the PRD caucus in the Chamber of Deputies and also presiding over the Political Coordination Board and the Finance and Public Credit Commission. His commission assignments reflected his educational and government background, ranging from Ranching to Budget Analysis.

In 2000, Ríos Piter entered state government for the first time when he became the deputy secretary for political matters in the government of the state of Guerrero, though he would soon leave the post in order to work toward a master's degree in national security awarded by Georgetown University. In 2003, he returned to Guerrero and became the deputy secretary of agricultural policy in the federal government at the Secretariat of Agrarian Reform (SRA). Two years later, upon the election of a new governor in Guerrero, he returned to Chilpancingo to serve as the state secretary of rural development. Additionally, he joined the Party of the Democratic Revolution (PRD) in 2007.

Armando Ríos Piter (born 21 February 1973) is a Mexican politician who served as a senator in the LXIII and LXIV Legislatures of the Mexican Congress representing Guerrero as a legislator from the Party of the Democratic Revolution; while a senator, he became an independent and briefly pursued an independent presidential campaign. He also served as a federal deputy during the LXI Legislature.