In fairness, I thought Pence won. And the poll might simply be indicative of how partisan the media has gotten over 4 years.
That's partly due to Trump and partly due to just the metamorphic effects of the fragmenting of reality that's happening to us as human. As we begin to share siloed realities.
I can see a situation where CNN simply leaned left 4 years ago. And are hardcore left now. So polling from 4 years ago will not be indicative of polling now.
In my view, Pence did a good job of controlling his tone, style and highlighting whenever Harris was being fuzzy. And was able to fluster Harris on a few occasions.
He talked too long a sometimes, which In light of the disaster from last week was a little annoying.
On the other hand, Harris got some props for mostly focussing on Trump and ignoring Pence. Good Strategy.. She was poorer at failing to answer questions asked (They both often didn't answer the questions asked.) But whatever she pivoted to, didn't hit as well.
I think she won on the Covid issue even though even though Pence had a salient point about Obama/Bidens preparedness.. Harris in my view, failed to land a win after the Covid question.
Now this might be a personal pet peeve, but I hate those tired post debate talking point one liners and zingers. The " excuse me, I'm still talking" followed by not saying anything were dissapointing. I
The most glaring of this was on the issue of Race, which you'd have expected a slam dunk for her. Pence simply just recited her record as a DA and State AG.
In a fair reading of the case (which will never happen in this hyper-parisan time) that exchange would have been the knockout.
Oh and yeah, the only inference I could reasonably draw from watching the debates, is that Biden/Harris will Pack the Supreme Court.