Mexico ruling party on back foot in regional vote - early results

By Dave Graham XALAPA, Mexico (Reuters) - Mexico's ruling party looked primed for a significant setback in regional elections on Sunday, losing ground to the opposition due to widespread anger over corruption and gang violence in a race that may set the tone for a 2018 presidential vote. Early tallies showed President Enrique Pena Nieto's ruling Institutional Revolutionary Party, or PRI, could lose control of several states in 12 gubernatorial contests, including two of its historic bastions in