How did America's Mayor wind up at the center of Trump's impeachment scandal?

To learn more, listen to this episode of Today Explained, a daily podcast from Vox: http://art19.com/shows/today-explaine...

Rudy Giuliani started his career as a superstar prosecutor and a crime-fighting mayor. Then he led New York City back from the attacks of September 11th, and it made him a beloved national figure. But today's Giuliani is something different: He's the guy willing to say anything to defend Donald Trump on TV, a central figure in the scandal that got the president impeached, and he's under investigation by the US attorney's office he once led. How did Rudy Giuliani get here?

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Read more about Rudy Giuliani on Vox.com:
https://www.vox.com/policy-and-politi...

And check out Andrew Kirtzman's book on Giluiani's time as Mayor (he's now working on a second book about Giuliani):
https://www.amazon.com/Rudy-Giuliani-...

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