By Dave Graham and Miguel Gutierrez MEXICO CITY (Reuters) – Mexico's ruling Institutional Revolutionary Party (PRI) is ready to support an opposition proposal to increase a planned tax on junk food included in the government's fiscal reform, the PRI's leader in the Senate said on Wednesday. Last week, the lower house of Congress approved President Enrique Pena Nieto's fiscal reform, at the last minute adding a measure to impose a 5 percent tax on junk food. The Senate must approve the reform by the end of the month. …
