That is what readers of a piece on middle class support for the PRI in upcoming elections must be asking. While the piece does make a reference to the "sluggish economy," but provides no details.
In fact, Mexico's economic poor economic performance stands out in Latin America. It's per capita growth since 2000 has been less than half of the average for Latin America as a whole. While the rest of the region has seen a sharp uptick in growth after two decades of near stagnation, Mexico has not shared in this prosperity, seeing per capita GDP growth of just 0.9 percent a year. There has been almost no reduction in poverty over this period.
The Washington Post has had a difficult time acknowledging Mexico's economic failures. It had been an enthusiastic backer of NAFTA and insists that it has been a great success in spite of the evidence. It even told readers back in 2007 that Mexico's GDP had quadrupled over the period from 1987 to 2007. (The actual increase was 83 percent.)