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Trump Names Stephen Miller White House Chief of Staff, Replacing Susie Wiles After Midterms

Abstract editorial illustration of a West Wing silhouette and empty desk in cool blues and grays, no people

President Donald Trump announced Friday afternoon that Stephen Miller will become White House chief of staff, replacing Susie Wiles days after Republicans lost control of Congress in the midterm elections. The change, disclosed on Truth Social, takes effect Monday and marks one of the most significant staff shifts of Trump’s second term.

The announcement

In a Truth Social post Friday, Nov. 6, 2026, Trump said Miller — currently White House deputy chief of staff for policy — will assume the chief of staff role starting Monday, Nov. 9. Trump described Miller as “one of my most trusted advisors” and wrote that Wiles “will be moving over to the Trump Political Operation,” thanking her for an “outstanding job.”

Asked about the timing, Trump said Friday that he “wanted to make a change,” according to reporting by NBC News. That statement contrasted with comments he made to NBC in mid-October, when he said Wiles would “be there until the end.”

Who Stephen Miller is

Miller is a longtime Trump adviser who first joined the 2016 campaign as a speechwriter and later held senior policy roles in the first Trump administration. In the current White House he has served as deputy chief of staff for policy and is widely known for his role in the administration’s immigration policy. Associated Press, NBC News, and CNBC each noted that background in their Friday coverage of the appointment.

As chief of staff, Miller will oversee White House operations and serve as a principal gatekeeper for presidential time, staffing, and policy coordination — responsibilities that sit at the center of day-to-day executive branch management.

Wiles’s exit and the political operation

Susie Wiles has served as White House chief of staff since Trump’s return to office. She was the first woman to hold the post and the longest-serving among Trump’s chiefs of staff. A White House official told NBC News that Wiles submitted her resignation Thursday night. On Friday she posted that the day was her last as chief of staff and called serving in the role “the honor of a lifetime.”

Trump’s Truth Social message said Wiles is moving to the Trump Political Operation. Neither the White House nor Wiles publicly detailed a specific title or portfolio for that next assignment in Friday’s announcements covered by AP, NBC, and CNBC.

Midterm context and reactions

The leadership change comes three days after Republicans lost control of Congress in the 2026 midterms, according to Associated Press, NBC News, and CNBC. Trump did not explicitly link the midterm results to the staff move in the Truth Social post summarized by those outlets, but the timing placed the announcement squarely in the post-election period.

House Minority Leader Hakeem Jeffries reacted on X by calling for Miller to be fired rather than promoted — a statement Jeffries made in his own words and that was widely reported Friday. Other lawmakers and outside groups offered mixed responses reflecting the polarized debate over Miller’s policy record, particularly on immigration.

What’s next and why it matters

Miller is scheduled to begin as chief of staff on Monday, Nov. 9. The handoff leaves little overlap for a formal transition period and elevates a longtime policy adviser into the White House’s top management job at a moment when Trump’s second term faces a newly Democratic-controlled Congress.

How Miller structures the West Wing, what role Wiles plays in the Trump Political Operation, and how the administration engages with congressional Democratic leadership will be early tests of the new arrangement. For now, the facts are clear from Friday’s announcements and reporting: Miller replaces Wiles as chief of staff; Wiles leaves after Thursday’s resignation and a Friday farewell; and the move arrives days after a midterm setback for Republicans.