Stephen Miller will become White House chief of staff on Monday, replacing Susie Wiles, President Donald Trump announced on Friday. The shake-up comes just days after Republicans lost control of the House and the Senate in the midterms. Miller, a long-time Trump adviser, is best known as the driving force behind the administration’s hard-line immigration policies.
Trump made the announcement on his Truth Social platform. He called Miller “one of my most trusted advisors”, Al Jazeera reported. He also praised Wiles, saying she “has done an outstanding job” and would be “moving over to the Trump Political Operation”.
Why Stephen Miller is now chief of staff
The timing has drawn attention. ABC News, citing sources, reported that Wiles submitted her resignation on Thursday night. According to those sources, it had become clear that Trump blamed her for the midterm losses. Trump, for his part, said he “wanted to make a change” and that Wiles had done a good job.
The results were a heavy blow for the president’s party. As of Friday, Democrats had won 253 of 435 House seats, with 27 races still uncounted, Al Jazeera reported. They also gained seven Senate seats, with races in Alaska and Mississippi still being counted.
Trump has also hinted at wider changes. In a CBS “60 Minutes” interview due to air on Sunday, he was asked whether he would fire anyone. “I do, yeah. Little bit,” he replied, according to Anadolu Agency.
Who is Stephen Miller?
Miller, 41, has been part of Trump’s inner circle for a decade. He joined the 2016 campaign as a speechwriter and adviser. Before that, he worked for Jeff Sessions, who later became Trump’s first attorney general, the Associated Press reported.
Between Trump’s two terms, Miller ran America First Legal, a conservative legal group. After Trump returned to office, he became deputy chief of staff for policy. In that role, he shaped the administration’s immigration crackdown, including large-scale enforcement raids.
Supporters see him as one of the most loyal and effective figures in the White House. White House communications director Steven Cheung described him as “a Trump OG, someone who has been with the President since the very beginning”.
Wiles leaves a record tenure
Wiles made history in the role. She was the first woman to serve as White House chief of staff. She is also the longest-serving chief of staff of Trump’s two terms, the AP noted. By comparison, Trump went through four chiefs of staff in his first term.
In a statement, Wiles said serving the president in the White House “has been the honor of a lifetime”. She added that her commitment to Trump would not change. Friday was her last day in the post.
Sharp criticism from Democrats and some Republicans
The choice was criticised quickly. Republican Senator Thom Tillis, a long-time critic of Miller who is leaving the Senate, called him “the worst of all possible choices” for the job, ABC News reported.
Democrats were also scathing. Representative Robert Garcia, who is expected to chair the House Oversight Committee next year, accused Miller of being “the architect” of what he called unconstitutional immigration raids. He said Oversight Democrats would continue to investigate Miller.
On the other hand, allies welcomed the move. Vice President JD Vance thanked Wiles and congratulated Miller, according to ABC News.
What it means for Trump’s final two years
Analysts quoted by Al Jazeera said the appointment suggests Trump will double down on his most contested policies. With Democrats set to control Congress from January, new laws will be harder to pass. As a result, the White House may rely more on executive orders, Fox News reported.
The change also raises the chance of clashes with Congress. Democrats are widely expected to open investigations into the administration next year. Miller, as chief of staff, is likely to be at the centre of them.
Meanwhile, other departures are already under way. Jason Reding Quiñones, the top federal prosecutor in southern Florida, has stepped down, Anadolu Agency reported. For now, all eyes are on Miller’s first week in charge and on which Cabinet members Trump may replace next.
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Sources & References
- Al Jazeera: Trump names Stephen Miller as new chief of staff, replacing Susie Wiles
- Associated Press via PBS NewsHour: Trump names Stephen Miller his next chief of staff after major Republican midterm losses
- ABC News: Trump says chief of staff Susie Wiles out, Stephen Miller will replace her
- Fox News: Stephen Miller takes over as White House chief of staff from Wiles
- Anadolu Agency: Morning Briefing: Nov. 7, 2026