@dlowan,
We are in the "intercampaign" phase now, an absurdity when we have candidates but no campaigns "outside of the party".
So everybody is focusing about blunders.
PRI's Peña Nieto biggest blunder was his inability to name the 3 books that have influenced him the most. He named the Bible, but then -remembering his party is not religious- he added "of course, I haven't read all the Bible". Then he cited a book by novelist Carlos Fuentes, but attributed it to essayist Enrique Krauze. All sorts of jokes about his ignorance followed.
When he took oath as the party's candidate, he used a teleprompter. Jokes went on about his incapability to say: "Yes, I do" without help.
PAN's Vázquez Mota has been the most hit during this time.
First, an ill-organized event at Estadio Azul (Blue Stadium) where she swore as the official candidate of her party. She arrived late, people were made to wait and, as she was speaking, many of them started to leave the stadium... their buses were about to leave.
Then, their foes digged and found an article in which Vázquez Mota praises former Chilean dictator Pinochet's economic policies, which supposedly built the basis for Chile's later development (and big income distribution divide).
Finally, their foes digged her B.A. thesis and underlined a phrase against the National University, UNAM: "a monster in which more than half a million students do not care about their professional preparation". Now, UNAM is Mexico's biggest public university, every single Mexican Nobel prize winner studied there (and the world's richest man, too), it is considered the best university in Latin America by all rankings (the Financial Times, included) , while her university (Iberoamericana) barely makes Mexico's top 20 and her career is ranked lower than UNAM even in Mexico's right wing paper Reforma's classification.
To undermine Vázquez Mota even more, a young member of her party, during a "Youth Parliament" session, attacked the left saying that their candidate is mediocre, because he got his title 14 years after he entered the University. Vázquez Mota got hers 15 years after her admission. The dumb kid got angry during and yelled "we cannot tolerate faggot marriages" (approved in leftist-governed Mexico City).
PRD's López Obrador has also made blunders. He confided he doesn't have now the same energy as 6 years ago. Now everybody is saying that he's gotten old (he's only 58). Then he declared that if he losses he'll go to La Chingada (a curse word, with the equivalent of going to hell). The reaction was: he knows he'll lose. Finally, to prove he is healthy and not old, he played a baseball game with former all-stars. He proved he can bat and field, but wore the Number 3 jersey. "3 for third place", was the reaction.
The polls are basically the same: Peña Nieto 47, Vázquez Mota 30, López Obrador 22, Quadri 1.
In Mexico City, left-wing candidate Mancera received the endorsement of the masons (who usually go PRI) and the industrialists (who usually go PRI or PAN). He's on a roll.