PRI's rule in jeopardy as AMLO gains momentum in Mexico's largest state election.

Mexico's most populous state is expected to end the Institutional Revolutionary Party's (PRI) 94-year rule in gubernatorial elections on Sunday, with the party likely to be left with just two states. Morena, the party founded by President Andrés Manuel López Obrador (AMLO), is expected to win and control 22 of Mexico's 31 states, leading some to warn of a new kind of one-party rule. The PRI's demise is attributed to its history of corruption and the rise of Morena, whose success rests on AMLO's popularity and his promises to combat corruption and prioritize the poor.