Even the big banks with their experts can be said to be unreliable. This is what Wells Fargo was saying in mid-August after PASO and as far as I can tell is their most recent forecast:
Was it a forecast? Or wishful thinking?
It was obvious for several weeks that Bullrich's campaign was imploding, and I think it's fair to say it's entirely her fault. She had no positive message to give, her focus was very obviously her personal vendetta against Cristina, including the spiteful and gratuitous promise to name a new prison after her. She would have dedicated her 4 years to pursuing Cristina, not to governing the country. Despite having what seemed to be a sensible, non-loony economist on board, her self-indulgence destroyed her campaign. With her last minute frantic tack back to the centre to get Larrata on board and his votes as well, it was clear she was desperate. Her ungracious concession speech last night was characteristic.
It was also obvious that Massa would improve, he had the party machinery and Axel Kicilof behind him. Perhaps not so obvious was how Milei's vote would collapse, his ceiling is still 30%. It's funny to watch how, as more and more votes are counted, his share goes down. People who live in the remote corners of Buenos Aires province and where they have to bring the voting urns by mule train in Jujuy can't live without some support from the state. And the state can't afford to depopulate these areas either. I think making it clear what bus and train fares would look without subsidies was an excellent and completely fair tactic. Plus, his needless alignment with apologists for the dictatorship must have turned some people off.
I think we've seen peak Milei. Bregman's 2.7%, and a lot of Schiaretti's 6.8% (he is a peronist) will go to Massa. So too will at least some of Bullrich's voters, having been insulted by Milei. Say 10% from there, so 15-17% to add to the 37% Massa scored just now, and he's home.