“Make America Healthy Again” is a great idea — somebody should try it.

A lot of the concerns animating the MAHA movement — chronic disease, the unhealthiness of the American diet, how profits warp our health care system — are serious issues. But Robert F. Kennedy Jr. hasn’t taken major actions to address them. Instead he’s gutted funding for scientific research, including nearly $500 million dedicated to mRNA vaccine development, throwing a huge amount of possibly lifesaving research in limbo.

How did we get here? What are the politics that allowed Donald Trump to preside over Operation Warp Speed, the single most successful pandemic mitigation policy, and then turn around a few years later to appoint Kennedy to undo it all?

My colleague David Wallace-Wells has done incredible reporting on how pandemic policies have shaped our politics, culture and society. Rachael Bedard is a physician and a writer who has been thinking deeply about what MAHA represents and where the movement could find common ground with its critics.

Mentioned:

“‘I Think He Is About to Destroy Vaccines in This Country’” by David Wallace-Wells

“Why Calling RFK Jr. ‘Anti-Science’ Misses the Point” by Rachael Bedard

Book Recommendations:

Doppelganger by Naomi Klein

The End Doesn’t Happen All at Once by Chi Rainer Bornfree and Ragini Tharoor Srinivasan

Plagues Upon the Earth by Kyle Harper

The Making of the Atomic Bomb by Richard Rhodes

Calling the Shots by Jennifer Reich

Wave by Sonali Deraniyagala

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

You can find the transcript 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.html

This episode of “The Ezra Klein Show” was produced by Annie Galvin and Jack McCordick. Fact-checking by Michelle Harris, with Kate Sinclair and Mary Marge Locker. Our senior engineer is Jeff Geld, with additional mixing by Aman Sahota. Our executive producer is Claire Gordon. The show’s production team also includes Marie Cascione, Rollin Hu, Elias Isquith, Kristin Lin, Marina King and Jan Kobal. Original music by Pat McCusker. Audience strategy by Kristina Samulewski and Shannon Busta. The director of New York Times Opinion Audio is Annie-Rose Strasser. Special thanks to Dr. Sunil Patel and Dr. Andrew Gabrielson.

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Trump to Europe: “Drop Dead”