Reuters, 6/30/2009
Mexico’s opposition Institutional Revolutionary Party, or PRI, held a firm lead heading into congressional elections on July 5, according to a poll by Consulta Mitofsky published on Tuesday.
The centrist PRI, which ruled Mexico for most of the 20th century until its defeat by the National Action Party, or PAN, in 2000, is set to win 34 percent of the vote for the lower house of Congress, making it the biggest party in the chamber, according to the poll.

