Elon Musk has been on a slash-and-burn tear through the federal government — gaining access to I.T. systems, dismantling U.S.A.I.D. and unleashing a firehose of attacks on his platform, X, accusing the bureaucracy of various conspiratorial crimes.As this all unfolds before our eyes, it’s hard to believe that Musk, not that long ago, was a conventional Obama-era liberal. How did a guy who cared about climate change and going to Mars, whose companies were buoyed by government largess, become Donald Trump’s most unapologetic soldier? What does he hope to do with all this power? What does Musk want?Kara Swisher has been reporting on Musk for decades and is one of the great tech reporters of our age. She hosts the podcasts “On With Kara Swisher” and “Pivot,” with Scott Galloway, and is the author of “Burn Book: A Tech Love Story.”This episode contains strong language.Mentioned:“What’s Wrong With Donald Trump?” by Ezra Klein“The Men and (No) Women Facebook of Facebook Management” by Kara SwisherBook Recommendations:North Woods by Daniel MasonOn Tyranny by Timothy SnyderMemorial Days by Geraldine BrooksThoughts? Guest suggestions? Email us at [email protected] can find transcripts (posted midday) and more episodes of “The Ezra Klein Show” at nytimes.com/ezra-klein-podcast. Book recommendations from all our guests are listed at https://www.nytimes.com/article/ezra-klein-show-book-recs.This episode of “The Ezra Klein Show” was produced by Elias Isquith and Jack McCordick. Fact-checking by Michelle Harris, with Kate Sinclair and Mary Marge Locker. Mixing by Isaac Jones, with Efim Shapiro and Aman Sahota. Our supervising editor is Claire Gordon. The show’s production team also includes Rollin Hu and Kristin Lin. Original music by Pat McCusker. Audience strategy by Kristina Samulewski and Shannon Busta. The executive producer of New York Times Opinion Audio is Annie-Rose Strasser. Unlock full access to New York Times podcasts and explore everything from politics to pop culture. Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify.