I think aid from the US was the last thing on their mind. Never have I ever voted for a party because what US, EU, China or any other foreign power threatened.
These midterm elections are usually an indication of how the general population feels the current administration is doing, think of the blue wave during Trump's first midterm.
Is there any indication that wide spread voter suppression or fraud was happening, not just anecdotal but like verifiable like what happened in Venezuela last year. If not I would say whether you like it or not, that is the crux of democracy, the masses have decided
Unfortunately shifting blame to reporting is not correct. In a democracy the people have a duty to inform themselves, unfortunately people choose to rather inform themselves with, how you put it "feeds". They think because they are hearing the same thing over and over, due to being in an echo chamber, they are informed, nope you just reinforced your biases. But the people have sold their duty to these influencers to do their informing for them in an easily digestible manner that makes them feel safe and reinforced their beliefs.
And also know this is off topic, I am a big believer in libertarianism, in a classical sense, not the US way. And I am curious to see how Milei does, and I also open myself up that I could be wrong with his libertarian ways, I believe the proof is unfortunately in the pudding at the end of the day, did it achieve success or not. Disappointed in the scandals so far but I hope Argentina one day achieves the success it truly deserves, maybe this way or maybe another economic model.
But I find Argentina interesting as a case study for my beliefs, like I said will change if I see Argentina fails.