Rudy Giuliani will prove to be the crucial character who pushed Donald Trump towards impeachable offenses. But how did Giuliani go from “America’s Mayor” and icon of the moderate Republican establishment to…whatever he is now? There’s an answer, and it’s crucial to both the impeachment story and the broader approach Trump takes to running the White House. Preet Bharara joins me to give it. In addition, Matt Yglesias and I discuss whether Democrats are wrapping their impeachment inquiry too early, and what it means that Lindsey Graham wants to turn the Senate trial into an investigation of Joe Biden. And remember when Donald Trump promised to run the government like a business? I have a few thoughts on how a board of directors might look at this presidency. Want to contact the show? Reach out at ezrakleinshow@vox.com Credits: Producer - Jeff Geld Researcher - Roge Karma Theme music composed by Jon Natchez  Special thanks to Liz Nelson Learn more about your ad choices. Visit podcastchoices.com/adchoices