(FILES) US Defense Secretary Pete Hegseth shakes hands with White House Deputy Chief of Staff Stephen Miller during a Mexican Border Defense Medal Ceremony at the Pentagon in Washington, DC, on July 27, 2026. President Donald Trump on November 6, 2026, named Stephen Miller as his new chief of staff, promoting the architect of his hardline migration policy after the Republican Party's brutal US midterms defeat. Miller will replace current White House chief of staff Susie Wiles as of Monday, Trump said on his Truth Social network, thanking Wiles for an "outstanding job." (Photo by Annabelle GORDON / AFP via Getty Images)