President Donald Trump announced Friday that Stephen Miller will become White House chief of staff, replacing Susie Wiles days after Republicans lost control of Congress in the midterm elections.
In a Truth Social post, Trump said Miller — currently deputy chief of staff and one of his most trusted advisers — will take over starting Monday, November 9, 2026.
“I am pleased to announce that Mr. Stephen Miller, the current Deputy Chief of Staff of the Trump Administration, and one of my most trusted advisors, will become the Chief of Staff starting Monday, November 9, 2026,” Trump wrote.
Trump said Wiles has “done an outstanding job” and “will be moving over to the Trump Political Operation,” thanking her for her service as chief of staff.
Moments later, Wiles wrote on X that Friday would be her last day in the role. She called serving Trump “the honor of a lifetime,” citing border security, tax cuts, and an America First agenda, and said her commitment to the president and the mission “never will” change even as her role does.
Miller has served as White House deputy chief of staff for policy and as a homeland security adviser, playing a central role in the administration’s hard-line immigration and deportation policies. He was an adviser and speechwriting director in Trump’s first term and previously worked as a Capitol Hill aide to Republican lawmakers.
In mid-October, Trump had said there was “zero chance” he was considering a replacement for Wiles after reports that she might step down after the election. The shakeup now lands as the White House weighs its next moves following the GOP’s midterm defeat.
The Associated Press, NBC News, and ABC News confirmed the announcement from Trump’s social media post.