I'm sure Hillary was doing well in Rasmussen after the Billy Bush tape was released.
The problem is that Trump going out of the hospital and taking a ride made it look like he wasn't taking Covid seriously. That's my guess as to his slip in the polls. It was self-inflicted woound.
But, there is time to turn things around.
Let’s see the internal numbers.
I don’t think that it’s that. Looking at these numbers, I think that the more likely scenario is that Biden took a huge jump in a bunch of these polls taken right around the Wuhan Coronavirus scare because people weren’t (and perhaps still aren’t) sure if Trump was even going to be ok.