Mexico's ruling Institutional Revolutionary Party (PRI) leads the field ahead of looming mid-term elections, a poll released on Monday showed, with its razor-thin majority in the lower house and ability to pass legislation at stake.
On June 7, Mexicans will head to the ballot box to elect new lower house lawmakers, and governors and local officials in various states, in the first national vote since the 2012 election won by President Enrique Pena Nieto's center-right PRI.
With its allies, the PRI has a slim majority in the lower house, which has helped it to pass . . .
