Look at the polls three weeks out in 2016 in MI, PA, and WI.
It's almost identical.
With the exception of Biden being over 50%, Trump being the actual president with a record, Biden's favorability ratings being sky-high compared to Trump/Clinton's, Biden considered to be the more honest/trustworthy candidate by large margins, undecided demographics generally skewing toward Biden, and the average polling leads being greater for Biden and much more consistent week-to-week than the were for Clinton, everything is identical to 2016.
