Another issue is how many registered Democrats were in the poll vs. how many registered Republicans and Independents? A lot of current polls have used 48% Democrat, 40% Republican and 12% Independent which tilts the whole Poll in favor of the Dems.
I assume they think that 48% of voters are Democrat which is bogus as the Dems have lost a lot (my WAG is 8-12%, or more) of their registered Voters due to the ultimate stupidity of 3 years of coup d’etat they have manufactured, on President Trump.
Dems, who still think Rationally, will simply NOT vote, or vote for President Trump.
Their bogus Impeachment “Star Chamber” has to tick off “Rational” Democrats.