Miller Replaces Wiles as White House Chief After Midterm Losses
Stephen Miller assumes the top West Wing post following sweeping Republican defeats in the House and Senate.
By Anthony Brooks ·
The White House leadership transition centered on a $400 million super political action committee spending package that President Donald Trump reluctantly approved in September. That financial commitment failed to prevent the loss of Republican majorities in both the House and the Senate during the midterm elections held earlier this year.
Stephen Miller, the senior domestic policy adviser, has been named the new White House chief of staff. He replaces Susie Wiles, who served as the first woman to hold the position. The announcement was made on Thursday, marking a immediate shift in the administration's inner circle following the electoral setbacks.
Miller has been a central figure in the administration's immigration crackdown. His promotion signals a move toward advisers who have driven aggressive domestic policy rather than those focused on broad political management. The change occurs as the White House prepares for potential congressional investigations by Democratic leaders in the new sessions.
Wiles played a central role in Trump's 2024 election victory. She helped secure his return to the presidency four years after his loss to Joe Biden. During her tenure, she pushed for the appointments of Marco Rubio as Secretary of State and Scott Bessent as Treasury Secretary. Officials described these figures as stabilizing presences within the cabinet.
Tensions between the president and his chief of staff had been building since the launch of the war with Iran in February. The conflict contributed to rising fuel prices and economic strain that voters punished at the ballot box. Trump began excluding Wiles from key hiring decisions, such as the selection of a new press secretary to replace Karoline Leavitt.
Behind the scenes, the dynamic had shifted further. Trump criticized Wiles in front of other staff members regarding decisions he had previously approved. He expressed dissatisfaction with the political team that advised him to sign off on the massive PAC spending. Wiles' supporters argued that the blame for the political strategy was misdirected, as Trump had driven the approach.
Wiles was diagnosed with breast cancer in early 2026. She continued to work through her treatment and recently announced that she was cancer-free. Her departure represents the highest-ranking White House exit connected to the midterm election results. The administration now enters a new phase with Miller leading the day-to-day operations of the West Wing.
