Ezra Klein: “The key to Biden’s success is simple: He’s slicing into Trump’s coalition, pulling back the older, whiter voters Democrats lost in 2016. The Biden campaign’s insight is that mobilization is often the flip side of polarization: When party activists are sharply divided by ideology and demography, what excites your side will be the very thing that unnerves the other side. Studies of House elections show this dynamic in action: Ideologically extreme candidates perform worse than moderates because they drive up turnout on the other side.”
“Biden’s theory of wavering Trump voters is the same as his theory of wavering Republican senators: He thinks they want to vote with him but need help getting over their political hang-ups about voting for a Democrat. And so he is trying to give them that help. He praises the old Republican Party, refuses to pick a side in American politics’ hottest fights. Biden has resisted calls to abolish private insurance, ban fracking, decriminalize immigration, and defund the police. It’s cost him enthusiasm on the left, but it has denied Trump the clear foil he needs. That’s left Trump confused, pathetically insisting Biden holds positions Biden doesn’t hold and getting fact-checked live on Fox.”