President Donald Trump named Stephen Miller his new White House chief of staff on Friday. He called Miller one of his most trusted advisors. Miller takes over the role on Monday.

He replaces Susie Wiles. Wiles is moving to Trump’s political operation. This change comes right after Republicans lost control of both the House and Senate.

The midterm losses were a major blow to the administration. Voters weighed the economic toll of the war with Iran. Affordability concerns also loomed large over the elections.

Trump told reporters that Wiles did a great job. He said he wanted to make the team even better. Sometimes in life we have to make moves.

Wiles handed in her resignation on Thursday night. A White House official told Fox News the decision was very amicable. She worked on Trump’s campaigns in 2016 and 2020.

Trump called her the Ice Maiden for her hard-nosed approach. She was known as a behind-the-scenes enforcer. Wiles faced scrutiny during her time in the White House.

She was involved in a Signal group chat. Secretary of Defense Pete Hegseth shared details about military strikes. The chat included an editor from The Atlantic.

The Atlantic later exposed these discussions. The administration denied that classified information was shared. Wiles also drew attention in December 2025.

Vanity Fair published interviews with blunt assessments of Trump. These interviews focused on senior administration officials. Trump praised Miller as a great pick.

An administration official noted Miller has the trust of millions. Reversing mass migration is a crisis of our time. Miller has been with Trump since the very beginning.

He is seen as a big advocate for the Trump agenda. Vice President J.D. Vance thanked Wiles for her service.

He called Miller an amazing patriot. White House communication director Steven Cheung praised Miller too. He said Miller will help deliver monumental victories.

Attorney General Todd Blanche thanked Wiles as well. He noted they reduced crime to historic levels. They also rooted out fraud against taxpayers.

Wiles was diagnosed with early-stage breast cancer in March. She shared she was cancer free in September. She wrote about fighting the disease while working.

She thanked Trump for his kindness during treatment. Wiles said her commitment to the mission never changes. Her role is changing but her service continues.

The transition marks a shift in White House strategy. Miller brings a different style to the top job. The administration faces new challenges after the election.

They must navigate a divided Congress moving forward. The focus remains on border security and the economy. Trump aims to strengthen America first policies.

The team adjusts to maintain momentum and power.