Vivek Ramaswamy burst onto the national scene last year as a wild card candidate for the Republican presidential nomination. Here was a relatively unknown biotech executive with no political experience, pitching himself as someone who could carry on Donald Trump’s movement. Trump ultimately won that primary contest handily, but Ramaswamy was a breakout star. There was even chatter that he might be Trump’s V.P. pick.

Trump, of course, ended up choosing JD Vance — Ramaswamy’s friend and former classmate — who has a very different vision for the future of Trumpism. But Ramaswamy believes the future of the Trump movement is still up for grabs and is fighting hard for his camp to win out over the one that Vance represents, including in his new book, “Truths: The Future of America First.”

In this conversation, we discuss the two competing visions that Ramaswamy sees as lurking beneath the surface of Trumpism, what he calls “national protectionist” and “national libertarian,” whether his vision is really so different from Paul Ryan-style conservativism, why he thinks these debates within the Republican Party are really deep down about identity and what it means to be an American.

Book Recommendations:

The Constitution of Liberty by Friedrich Hayek

The Bhagavad Gita

The Road to Serfdom by Friedrich Hayek

Thoughts? Guest suggestions? Email us at ezrakleinshow@nytimes.com.

You 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. Fact-checking by Michelle Harris. Our senior engineer is Jeff Geld, with additional mixing by Aman Sahota. Our supervising editor is Claire Gordon. The show’s production team also includes Annie Galvin, Rollin Hu and Kristin Lin. Original music by Isaac Jones. Audience strategy by Kristina Samulewski and Shannon Busta. The executive producer of New York Times Opinion Audio is Annie-Rose Strasser.

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