The Guardian, 6/7/12
Mexico‘s biggest television network sold prominent politicians favourable coverage in its flagship news and entertainment shows and used the same programmes to smear a popular leftwing leader, documents seen by the Guardian appear to show.
While it has not been possible to confirm the authenticity of the documents – which were passed to the Guardian by a source who worked with Televisa – extensive cross checks have shown that the names, dates and situations mentioned largely line up with events.
There is also evidence that actions suggested in the proposals did take place. The allegations come at a crucial time for Peña Nieto, the candidate of the ideologically nebulous Institutional Revolutionary party: recent opinion polls show his substantial lead beginning to erode as Televisa’s role as political kingmaker has become a central issue of the campaign.

