Impeachment support in WI will inevitably go down from 47% once Trump gets justifiably acquitted.
Note that Trump outperformed 2016 Wisconsin polling significantly. There's already the possibility that he'd win it against Biden if it was held today, and there's also the possibility that his numbers will also go up! I can see a Trump margin of victory of maybe around 4% or even a bit more if all goes well.
I'm getting kind of sick of this mindset.
Yes, swing state polling was off in 2016. But that does not mean swing state polling is off now. And I should note Marquette nailed the governors race in 2018.