I don’t buy that at all. Why would anyone be embarrassed or uncomfortable admitting they support Trump to a random anonymous pollster in a private phone call?
Also, the rallies, boat parades, etc etc kind of fly in the face of the claim that there is a “shy” Trump vote.
You're kidding, right?
First of all, I don't even answer my phone if I don't recognize the caller-ID, so any pollsters are not going to get through to me.
Second, anybody who knows me knows my views and knows they don't change -- you could fill out my questionnaire without even asking me, just take all the most conservative pro-Trump answers.
So what do pollsters make of people like you & me?
We're the base, we're solid, and the only question for us is, what percent of us will vote?
Well, normally the answer is: nearly 100%, but this year...
This year with mass mailings maybe our ballots get "lost" and others substituted... could it happen?
I don't know -- most certainly not in my local precinct, but who knows what goes on in the big cities?
So I suspect these pro-Biden polls are telling us what will happen if Democrats are entirely successful in "harvesting" their big-city voter base.