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There's a divide in American politics between those who think democracy is in peril and those who think it's already been subverted, hollowed out from the inside.
As President Trump returns to the White House, we go through the looking glass into a world where nothing is as it seems.
The coming storm from BBC Radio 4.
Listen, wherever you get your BBC podcasts.
Feels like we're witnessing some historic moments this week.
And after four years in charge, Joe Biden's on a bit of a goodbye tour around America.
On Wednesday night, he gave a farewell address live on television from the Oval Office to the American people.
This is some of what he had to say.
It's been the honor of my life to serve as your president.
But in the defense of democracy, which is at stake, I think it's more important than any title.
I draw strength and I find joy in working for the American people.
But this sacred task of perfecting our union is not about me.
It's about you, your families, your futures.
It's about we, the people.
We can never forget that.
In this edition of AmericasT, we're going to be considering Joe Biden's legacy, what he achieved and what he failed to do at home here in America.
This is part two.
We've already given you one about Joe Biden's record in international affairs, how he got on in the Middle East, Ukraine and Afghanistan.
But now we want to concentrate on his lasting legacy at home here in America.