Alexis de Tocqueville is the nearest thing foreign correspondents have to a superhero.

He arrived in America on a boat from France in May 1831, a young aristocrat on a mission.

The US was still a long way off being a superpower back then.

It was barely 50 years old.

But Tockville caught a glimpse of what it could become,

a new kind of society that would give the world a spectacle for which history had not prepared it.

A land with no kings or queens, where citizens made the rules.

And so he set off on a nine-month road trip to figure out how it worked.

He spoke to Americans from all walks of life.

He filled up 14 notebooks and dozens of letters with his observations.

Then he returned to France and wrote a book called Democracy in America. For my money, it's still the single most insightful thing

ever written about the United States. I'm John Priddo, the US editor for The Economist.

That book has been my companion since I first arrived in Washington as a correspondent 13 years ago.

Talkville's big insight was that America was much more than a country. It was an idea, one with the power to inspire followers and converts all over the planet,

almost like a religion does.

But now, two centuries after Tockville, more and more people are questioning their faith in the United States, and it's right to lead the world.

To make sense of this change, I'm returning to Tockville, to try to see this America through his eyes.

For a new podcast series, I'm going on my own road trip, following the route Tocqueville took.

Talking to Americans from all walks of life, just like he did, from New York's High Society.

Oh, now everybody wants you to cut back. We're all on a diet.

To prisoners in Sing Sing.

I made choices. We made choices.

...