Miller Takes Over White House Top Post as Wiles Steps Aside

The White House leadership structure changes on Monday when Stephen Miller assumes the role of chief of staff. President Donald Trump made the announcement on Friday, describing Miller as one of his "most trusted advisors." The move ends the tenure of Susie Wiles, who will transition to the president's political operation.

Wiles held the position for 21 months, making her the longest-serving chief of staff in Trump’s two terms. Her time in the role surpassed that of John Kelly, who served for roughly 17 months during the president’s first term. Wiles made history as the first woman to hold the post. She first supported Trump in 2015 as the co-chairwoman of his Florida campaign and served in key roles during the 2016 and 2020 cycles.

In a statement released shortly after the announcement, Wiles described the role as "the honor of a lifetime." She expressed pride in the administration’s record, citing border security, tax cuts, and economic growth as key accomplishments. "While my role may be changing, my commitment to the President and the mission never will," she wrote.

Trump thanked Wiles on Friday before departing on Marine One, stating she had done a "great job." A White House official told Fox News Digital the transition was "very amicable" and confirmed that Wiles submitted her resignation on Thursday night. Miller steps into the role on Monday, a position he has held informally as a senior advisor.

Reactions from within the administration were largely positive. Vice President Vance called Miller "an amazing patriot" and expressed gratitude to Wiles for her friendship and service. White House communications director Steven Cheung referred to Miller as a "Trump OG" and a strong advocate for the administration's agenda. Attorney General Todd Blanche said the team was "not slowing down" despite the change in leadership.

The personnel shift occurs after Republicans lost control of both chambers of Congress in the recent midterm elections. Those losses followed a period of significant tension for the administration, including a war with Iran and persistent voter concerns about affordability. Wiles also faced scrutiny during her tenure over a Signal group chat that included sensitive military details regarding strikes in Yemen, as well as candid interviews published by Vanity Fair in December 2025.