""11.7% of Republicans say they would not report their true opinions about their preferred presidential candidate on telephone polls.
In contrast, just 5.4% of Democrats say they’d be reluctant to share their true voting intentions — roughly half the number of Republicans reluctant to tell the truth on phone polls."
should be able to account for that stuff easily though ----------- it seems that pollsters were more concerned about 'who' they ring as opposed to what they say on the phone
hence - the formula changes since 2016 from what I read -
personally, I think it's complex at any time - but, at this time - ??? maybe impossible to predict - because not only do we have the Trump years - but, Covid alone - must make it different this time -
in attitudes to handling - but, also in the way people vote - or will or will not vote
how the hell does one account for such things - (and, that's nowhere near all the complications)