This document summarizes key Mexican political leaders since 1824. It discusses Porfirio Diaz, who served as president from 1877-1880 and 1884-1911, bringing political stability initially but failing to improve Mexico. It also outlines Antonio Lopez de Santa Anna, president intermittently from 1833-1855 who was overthrown for corruption. Carlos Salinas de Gortari served from 1988-1994 and negotiated NAFTA. Vicente Fox was elected in 2000, Mexico's first opposition party president. The current president Felipe Calderon took office in 2006 and works closely with the U.S. on issues like immigration and drug wars.