Who would have won in 2020, had everyone voted?

Trump. Or so I argue here, using Pew data. It’s a simple counterfactual: 2020 had a turnout between 62% and 66% (depending on how you count). That’s high by historical standards, but still leaves at least a third of the voting public out. Biden won the popular vote by 4 points: what would the result have looked like, had turnout been 100%? The rationale behind this counterfactual being the simple assumption that 100% turnout might not be necessarily better, but it sure is more representative...