Edgardo Melhem Salinas (born 14 August 1969) is a Mexican politician from the Institutional Revolutionary Party. He currently serves as a deputy in the LXIII Legislature of the Mexican Congress representing the Third Federal Electoral District of Tamaulipas, centered on Río Bravo.
Mercedes del Carmen Guillén Vicente (born 5 June 1954) is a Mexican politician from the Institutional Revolutionary Party. From 2009 to 2012 she served as Deputy of the LXI Legislature of the Mexican Congress representing Tamaulipas. She is the sister of Rafael Sebastián Guillén Vicente, whom the government alleges is the real identity of Subcomandante Marcos, the leader of the EZLN Zapatista guerrilla in Chiapas.