Leftist candidate Lopez Obrador, of the Party of the Democratic Revolution, had not seen the video, but said he agreed with the theme of change.

CNN: STORY HIGHLIGHTS

But Mr Lopez Obrador, of the Party of the Democratic Revolution, said the election had been fraudulent and that he would file an appeal next week.

BBC: Protesters outside electoral commission - 6 July

In many areas the tally was certified by his own centre-left Party of the Democratic Revolution, which scored its best-ever result in the vote for Congress.

ECONOMIST: People power and its abuses