(Backgrounds by Craig & Karl for The Washington Post; Photo by Amy King/The Washington Post)

In the newest episode of the Presidential podcast, we examine how George W. Bush's presidency marked the beginning of a new chapter in American history.

Our guests are Mark Updegrove, author of the forthcoming book "The Last Republicans" about the two Bush family members to hold the American presidency, and Peter Baker, author of "Days of Fire" and a journalist with the New York Times.

Listen to the episode here or on iTunes:

In previous episodes of the Presidential podcast, we've explored topics like Theodore Roosevelt's heartbreak and the way Lyndon Johnson exercised power. The podcast is hosted by Lillian Cunningham, editor of The Washington Post's On Leadership section.

As listeners tune in each week, the podcast reveals the ways in which our collective sense of what’s ’presidential’ has evolved over the years and how each president—esteemed, loathed or nearly forgotten—has something to tell us about what it takes to hold the nation’s highest office.

A new episode comes out every Sunday. Here's how to follow along:

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