IBD/TIPP tracking poll now daily till election. Great breakdown of demographics.
https://www.investors.com/politics/ibd-tipp-presidential-election-tracking-poll-2020/
The best news here right now is that they have Biden +9. when he was only +3 in their previous poll taken after the debate.
As for the demographics --
Trump leads only in the South, Biden in all other regions of the country.
Trump leads only with voters with a high school degree at most. Those with even some college, even if they didn't get a degree, favor Biden by more than 20 points.
Trump has a slim lead with white voters, but that's from white males. White females favor Biden.
Trump leads only with rural voters, not suburban and urban.
Biden leads with all income groups.
You'll find more demographic breakdows at the link. This poll isn't showing Biden with the lead among seniors other polls have found, though they do show him tied with Trump among seniors, after Trump won them in 2016.
Basically, this reinforces the polling data showing Trump's base is primarily poorly-educated white rural males.