You can't trust the polls. You can't trust the news. You can't trust your friends. It's considered gross to say anything you know the other person doesn't want to hear. The polls are mostly propaganda lacking any statistical value.
News reports are even worse.
You can buy editorial space in Mexican newspapers. Peruvian novelist Mario Vargas Losa wrote in Proceso that a PRI victory would be a disaster for democracy. He assumes they would win by fraud, I guess. The PAN mainly consists of the kind of Catholic businessmen who used to argue that Indians were racially inferior in the days before the Revolution. The left can't seem to come up with any plan except being against the PRI, which has transformed Mexico into a major industrial power, replacing Japan as America's second largest trading partner, after Canada.