Hilary was 6.5% in front of Trump, in Wisconsin, on 2016 Election Day and still ended up losing by something like half a percent.
Trump is covering all of his bases and IMO still has a huge following in the swing states. They will buy into whatever lies he keeps telling. The guy is an out an out grifter with no moral compass whatsoever.
Slightly off topic, I was talking to a couple of US colleagues around healthcare in the US and was really surprised that both were against free healthcare. Both were in favour of an insurance backed scheme, citing that they were reasonably young and healthy so don’t see why they should contribute to something they don’t use. Listening to their views on politics made me realise that it’s almost impossible to second guess how they would vote. The enthusiasm for Biden was slightly underwhelming, although I think Harris is a really smart move for Biden and could certainly sway the undecided.