and most Americans would say Biden.
Not strictly true. Trump beats Biden on the economy and jobs and Biden ahead on Covid and healthcare.
A strong economy is a necessity for and incumbent to win re-election (although doesn’t guarantee it). Trump needs the economy open again. He has no choice. His rhetoric isn’t just because he’s an idiot.
Either way the election will be close. That doesn’t necessarily mean a divided government, the chances of a sweep either way and split government are all equally weighted atm. We are looking at a slim majority if either side get a sweep.
Voter turnout by different demographics is going to be important. The demographics compared to 2016 have slightly favoured Biden. Trump needs a strong turnout of white men without a college education. He’ll be trying to whip that cohort into a frenzy.