See episode 4 of Relatos salvajes (2014), though not necessarily connected to Larreta.
Personally, while I don't like any of them (and can't vote, anyway), I think it will probably be Massa, Larreta, or Milei. Best money is on Larreta, but the big payoff is on Milei, who has not peaked and has been trending up. It's a world away, but the absolute crazy popular moves by a couple presidents up in Central America, plus the absurd inflation and everything else in Argentina, I don't know, there just a sort of intuition that this year could be a year when a complete outsider could shock the world and win the Argentine presidency (although probably without the legislative support necessary to do all that much with it).
Interesting analysis. I think Milei could pull it off. Bukele will have an electoral impact across the region.