Andres Manuel Lopez Obrador

Andres Manuel Lopez Obrador

Susana Gonzalez/Bloomberg

Andres Manuel Lopez Obrador, former Mexico City mayor, proclaims himself legitimate head of state during a swearing-in ceremony at the Zocalo in Mexico City, on November 20, 2006. Lopez held the ceremony before tens of thousands of supporters and symbolically assumed Mexico's presidency after he failed to win by less than 0.6 percentage point.