US President Donald Trump announced on November 6, 2026, that Stephen Miller will replace Susie Wiles as White House chief of staff, following major Republican defeats in the midterm elections.
Miller, who currently serves as deputy chief of staff and homeland security adviser, will assume the higher post on Monday, November 9, 2026. Trump shared the personnel change on his Truth Social platform, praising Miller as one of his most trusted advisors. The 41-year-old aide has spent more than a decade advising Trump, dating back to the 2016 presidential campaign, and played a central role in shaping restrictive immigration policies and mass deportations. His promotion places one of the administration’s most outspoken advocates of tougher immigration enforcement at the centre of decisions.
Resignation of Susie Wiles
Susie Wiles, the 69-year-old who made history as the first woman to serve as White House chief of staff, resigned after days of speculation and mounting tension following historic midterm losses. Senior administration officials described Wiles as the glue that holds everything together inside the West Wing. As Trump grew increasingly frustrated with the party’s historic setbacks in races across the country, Wiles approached the president directly.
Transition to Political Operations
While stepping down from her West Wing post, Wiles will move over to the Trump Political Operation. Trump formally thanked her for her service in his announcement.

Wiles reflected on her tenure in a statement published on X minutes after the announcement.
The appointment of Miller signals a hardline trajectory for the administration’s domestic agenda following a bruising election cycle where Democrats secured control of both chambers of Congress.
More on White House
BREAKING: President Trump announces Stephen Miller will become his new White House chief of staff starting Monday, replacing Susie Wiles. Miller, currently Trump's deputy chief of staff and a longtime trusted adviser, is set to take over one of the most influential positions in… pic.twitter.com/0Y5kiwctHd
🔴 BREAKING: US President Donald Trump announces that Deputy Chief of Staff Stephen Miller will become White House chief of staff on November 9, while current chief of staff Susie Wiles will move to the Trump political operation. pic.twitter.com/kqpGDJN2tB