US President Donald Trump has appointed Stephen Miller as his new chief of staff, replacing Susie Wiles. The move comes days after the Republican Party lost control of the House of Representatives in the midterm elections. Miller, a key architect of Trump’s hardline immigration policies, will take over the role on Monday.

Miller has served as deputy chief of staff and senior adviser during Trump’s first term. He has also held positions as homeland security adviser and played a central role in shaping the administration’s deportation strategies. Trump announced the decision on social media, highlighting Miller’s loyalty and experience.

Susie Wiles, who had served as chief of staff since 2021, resigned after the midterm losses. Trump stated that Wiles would move to his political operation. The appointment marks the first major reshuffle in the White House since the election.

This change reflects Trump’s continued reliance on advisors who supported his immigration policies. Miller’s promotion underscores the administration’s focus on maintaining a hardline stance on border control. The decision has drawn attention from Democratic lawmakers, who have vowed to scrutinize Miller’s policies.

The midterm losses marked the first time since 1948 that the Republicans lost control of the House. Trump’s administration has faced increasing pressure to address internal party divisions and public discontent over immigration enforcement. The reshuffle is seen as an effort to consolidate power and reinforce policy direction.