In public, White House deputy chief of staff Stephen Miller is putting his heart into his work promoting President Trump’s budget . He’s doing TV and radio hits for the Big Beautiful Bill , posting nonstop on X about it, and sparring with Republican senators who aren’t thrilled about the bill potentially adding trillions to the deficit.

At home, though, things may be a little more complicated. His wife of five years, Katie Miller , is now working closely with Elon Musk, who has emerged this week as the No. 1 enemy of the Big Beautiful Bill amid a fast-escalating feud with Trump.

Katie had been working for Musk as an advisory member in the Department of Government Efficiency from the beginning of Musk’s brief stint in government. (Having served as a spokesperson for Mike Pence

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