Katie Miller’s Solar Express

Renewable energy industry types are wondering why Stephen Miller’s wife seems to have developed a sudden interest in their field. Not that they’re complaining.

Miller insists that she is not being paid for her posts. “I do not have a paid partnership” with the American Clean Power Association, the largest clean energy trade group, she told Leigh Ann, echoing the same thing she said in a statement to Politico. Photo: Al Drago/Getty Images

Leigh Ann Caldwell

March 11, 2026

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Katie Miller, the podcaster and wife of Stephen Miller, is a prolific presence on social media. As a self-described natalist, she typically posts about the declining U.S. birth rate; defends Elon Musk, her former full-time boss; or slams his rivals, like Sam Altman at OpenAI and the Anthropic guys. But over the past month, she’s added a new subject to her repertoire: the benefits of solar energy. In that period, Miller has published nearly a dozen posts promoting solar development—often highlighting China’s expansive build-out while arguing that U.S. investment in solar is fundamentally a national security issue.