You are right, of course, Judith! In the realm of satire I always exaggerate on purpose. Still, as a fascinated follower of Nate Silver and his 5-38 bunch I am aware of the intricacies of polling.
But couldn’t we look at those skewed polls from this angle: they will overrate republican opinions but even then they signal probable tendencies in that domain? A rise of (a part of) republican support at least tells us the Bullshitter succeeds in keeping up appearances of successful policy in the minds (not sure about the hearts, any left there?) of the constituents that helped him to become president. Those polls can be seen as a monitor of the success of bullshitting, heralded and megaphoned by the Bannons and their hyper rich backers, like the Koch brothers. It is well known how the Chief Creep devours popularity indices like donuts or whatever dire food he craves for. And won the election that way.