This is some much needed good news to help me have some cautious optimism for Biden as the nominee.
Once Americans start paying attention more Biden will do bad if he is the nominee. He is a really awful candidate.
I won't deny that it's definitely possible, and what I am most worried about with any Democrat. But Biden has more room to fall than the other candidates do and has been almost Trump-like in his ability to not be affected much by his gaffes or the skepticism directed at him. I also expect that the methodology of most polling firms will be more accurate this time compared to 2016. Marquette was very accurate in 2018, and they always have been one of the Badger State's better pollsters.
Nonetheless, Wisconsin is still a tossup, and is where the election will be won or lost.