This is interesting. Prensa Latina (although the English is a little rough). Not to get, erm, foily, but:

The spread by the media of information dealing with a fifth attack on the website of Andres Manuel Lopez Obrador, candidate of the For the Good of All coalition.

And was Obrador's site hacked on general principles, or for more specific reasons? Well....

The intromission came Saturday evening hours after Lopez Obrador outlined and made a call to join a national plan to fight electoral fraud at a mass rally in this capital´s main square.

The attack occurred when the website began to broadcast phone conversations showing maneuvers to favor the win of pro-government Felipe Calderon.

Those calls are included in the impugnation file.

Hmmm....

Of course, the site might have gone down when it was overwhelmed with downloads of the phone converations.

Still, it's interesting, isn't it?

NOTE Still looking for a Spanish translator...

UPDATE An aside on hacking from El Machete.