The Race between Candidates, Polls in Puebla

Because of the singularly reprehensible nature of Mario Marín's administration in Puebla, and because it was one of the first states where a PRD-PAN alliance was hammered out, the state is in many ways ground-zero for stopping a PRI sweep in next month's gubernatorial races. Leo Zuckermann points out that the polls are wildly differing, with Mitofsky surveying a 15-point PRI lead, while Ipsos shows a one-point edge for the PAN candidate. Which leads him to conclude:

I don't have a problem with the publication of polls paid for by the parties. But I do think that the publication should be as transparent as possible for the good of the public-opinion polling industry. We should know who paid for the polls so that their cost is accounted for as a campaign expense. And so that when there is such a clear a discrepancy in the results, there is an explanation of what happened.