Even though I see American teachers as among the biggest obstacles to education reform in this country, I think Mexico's are a little worse.
The National leader WAS tied to PRI (the state governor's party), but formed her own party, allied with PAN in the last election. Ester Elba Gordilla, the Union Pres, is called "Senora Hoffa" in the media... for good reason. Like her namesake, she's willing to switch parties to preserve her own power, and has managed somehow on a small-town grade school teacher's income to acquire things like apartments in Paris.
As often is the case, there is some truth in what APPO has been saying, and wise people would do well to listen to the drumbeats, as attention does need to be paid to some of the issues that this whole scenario has raised.