President Donald Trump has appointed Stephen Miller as his new chief of staff, replacing Susie Wiles, after a significant loss by Republicans in the U.S. Midterm elections. The change comes as part of a broader reshuffling within Trump’s administration. Miller, a long-time advisor and architect of Trump’s restrictive immigration policies, is now in charge of the White House staff.

The decision follows the Republicans’ poor performance in the November 2026 midterms, where they lost control of the House of Representatives. Trump announced the move on his social media platform, Truth Social, thanking Wiles for her service. Miller, who has been serving as deputy chief of staff, will take over the role starting on November 9, 2026.

This appointment marks a shift toward more hardline policies within the administration. Miller is known for his role in shaping Trump’s immigration strategy, including the construction of a border wall and strict immigration controls. His promotion signals a move toward a more aggressive approach in the wake of the election losses.

This is not the first major personnel change in Trump’s administration. The reshuffling comes amid ongoing political tensions and a reevaluation of leadership roles following the midterms. The new chief of staff will be tasked with repositioning the administration’s agenda in the face of a changed political landscape.