I did not include that last poll, because 'Celag' is practically a Petro internal: it is a left-wing think tank tied to Rafael Correa and Podemos -- which isn't to say that their work is without value, but their polls are definitely a bit loaded. Their last poll, a month before the first round, had Duque leading Petro by only 4%.
In the next few days, as I get back into my routine, I'll discuss the latest developments in the campaign and hopefully talk about the 'voto en blanco' and the main ideological/policy differences in this election.
Same story with Datexo, unfortunately. They also had Duque leading by only 4 before the first round.