Marcos Leonel Posadas Segura (born October 8, 1938, Tampico) is a Mexican politician.
Leonel Posadas joined the Mexican Communist Party in April 1956.
The following year he became the general secretary of the Mexican Communist Youth, a position he occupied until 1970.
[1] Posadas became a co-founder of the United Socialist Party of Mexico (PSUM).
This article about a Party of the Democratic Revolution politician is a stub.