You say Trump had a feel for that, and I politely disagree with your assessment. I’m going to say “coincidence”, honestly.
Take a moment to read up on Normal Vincent Peale. He was a preacher who wrote “The Power of Positive Thinking,” and had deep ties to the Trump family. You can draw a pretty straight line from Trump’s idiot tweets to a page in that book or a word from Peale’s lips. So everything Trump did was the best, the “bigliest,” the “yugest,” and any other superlative you care to lavish on his deeds. It had to be. Peale wouldn’t have had it any other way.
If you find yourself extra-short on time (but I think if you want to understand Trump, you need to understand Peale), then the executive summary is that Peale pushed this notion that if you believe something hard enough, you affect reality itself and your wishes become true.
So I don’t say that Trump had a feel for anything, at all. Other than wishing he would be the World’s Greatest Prezdent.
The audience was primed for it, though. There’s a lot of analysis on how Fox peddles performative mistruth as entertainment in the guise of news. Trying to encompass my thoughts on that is going to turn a message board response into an essay, so I’m going to leave it. I’ll just say, “The audience was primed.”
As for the pollsters, well, it’s statistical analysis at best, and wild guessing at worst. A pollster with a good methodology can list their probability of error, and a bad one can’t. If you don’t see a margin of error, you’re wasting your time. HOWEVER, it doesn’t make for good media and crunchy math isn’t interesting to the general populace.
The fault kind of also lies in the system itself, in my opinion. Close elections are decided by a handful of swing states, and those swing states are in turn decided by a handful of undecided voters. You can’t very well sample them all to get an idea of how the campaign is going, because nobody has that time or money. You have to sample a cross-section, a slice if you will.
So to predict how the overall election is going to go, you’re basically taking a slice of a slice of a slice. Factoring in how, say, Georgia is going to go involves so much statistical guesswork** you may as well just read chicken entrails. The handful of voters in Georgia can be the butterfly whose fluttering wings can cause tornadoes.
Trying to model the US election is a challenge of heroic proportions, with pretty wild margins of error, where the results of the popular vote are near-as-matters useless. You’ll need to crack that mathematical nut if you want better predictions of the results. I don’t have a solution for that.
That said, I think you may also be overstating the value of polls. I don’t think there’s really anything wrong with them, but if you don’t like how the public perceives them, that’s a PR problem. If you don’t like them yourself, I hope my explanations will help you appreciate that they’re basically mathematical wild-A. guesses and should be considered, but not viewed as absolute truths.
** That’s hyperbole.