Milei's 14 point loss in the Bs As provinical election early September made many , including myself, think that there was no way he would win more than a few seats in the mid term elections.
A couple of friends who are party members actually said to me that the best result they could hope for was to lose by only a few points.
Obviously something happened in the last two weeks to change things.
I really dont think it was Trumps intervention - in fact I know that annoyed quite a few people.
When people saw the possibility of the return of CFKs cronies and the Campora , I think they decided it was worth giving Milei another couple of years to try and sort the mes out