White House Deputy Chief of Staff Stephen Miller and his wife Katie Miller pose on the red carpet for the 2026 White House Correspondents' Association (WHCA) dinner in Washington, D.C., U.S., April 25, 2026. REUTERS/Elizabeth Frantz
A former senior White House official is spilling the tea on Stephen and Katie Miller, describing the union of Donald Trump's deputy chief of staff and his right-wing podcaster wife as less of a romance and more of a corporate transaction.
"It's more like a merger than a marriage," the former official told the Financial Times in a sprawling profile published Saturday. "They’re very close as a couple, but they’re two very odd ducks."
The piece, by columnist Jemima Kelly, paints the Millers as a "formidable political partnership" — Stephen the "geeky introvert" ideologue and Katie the "self-assured extrovert" attack dog whose "contrasting though congruous personas perfectly complement one another."
Stephen Miller, 40, is "surely the most powerful unelected person in America," Kelly wrote, and former Trump strategist Steve Bannon recently dubbed him "Trump's prime minister." Katie Miller, 34, has been building her own brand as host of "The Katie Miller Podcast."
"Like her husband she lacks charisma, albeit not quite to the same extent. But she is feisty and sometimes gives people quite a grilling, and despite having been panned as 'dreary', 'boring' and 'excruciating' by the press, the podcast does also offer, for me at least, a quite fascinating insight into not just the Millers’ marriage but the wider administration, a kind of secret window into the Trumpworld psyche."
The former White House official didn't pull punches on Stephen's demeanor in meetings either, telling Kelly his belligerent persona is no act.
"What you see when he comes on Fox and he starts shouting and goes totally into Himmler mode — that’s him in meetings,” the official said. “If you talk to him, he starts going on these tirades, and you realise — you go, ‘F---, this guy really believes this.’ Very few people in this town believe anything. Stephen’s a true believer.”
Katie, currently pregnant with the couple's fourth child, has built her own reputation for combative outbursts and viral social media meltdowns in defense of her husband.
The Millers did not respond to the columnist's requests for comment.