Stephen Miller, the 41-year-old architect of President Donald Trump’s mass deportation policies and hardline immigration crackdowns, has assumed the role of White House chief of staff. Miller began serving in this capacity on Monday, stepping into the position previously held by Susie Wiles. He had previously served as a deputy chief of staff in the administration.

The transition was announced by Trump on Friday via his Truth Social platform, where he identified Miller as his most controversial aide. The news caught many observers by surprise, as members of the administration had recently denied reports suggesting that Wiles was preparing to depart her post.

Miller’s promotion arrives in the midst of a period of significant personnel changes within the executive branch. In recent weeks, several prominent women in the administration have stepped down from their roles. These departures include Harmeet Dhillon, a senior official at the Department of Justice, and Katie Zacharia, who served as press secretary for only five days after replacing Karoline Leavitt.

The timing of the appointment is particularly notable given the recent midterm election results. Just days before Miller’s promotion, voters across the nation delivered a sharp rebuke to the president’s agenda, which is only two years into its implementation. Republicans suffered substantial losses in these elections, marking a significant shift in the political landscape.

Democratic critics have argued that the decision to elevate Miller demonstrates a lack of responsiveness to voter sentiment. They point to the national turmoil caused by the administration’s harsh anti-immigration measures over the past year as evidence that the president is not adequately listening to the electorate.

In an interview with CBS’s 60 Minutes that aired over the weekend, Trump himself acknowledged that his mass deportation policy had been overly aggressive. He stated, “I think it was too tough. I think it might be too tough, yeah. And a lot of people would say that it’s great. But a lot of people think it’s too tough.”

Despite his own admission regarding the intensity of the policy, Trump chose to promote the aide responsible for that very policy to a more prominent position in the White House. This decision has intensified scrutiny on the administration’s internal dynamics and strategic direction.

Further staffing changes are expected in the coming days following the midterm results and Miller’s appointment. Richard Walters, a White House deputy chief of staff and a close ally of Wiles, announced that he would also be leaving the administration. His departure suggests that the reshuffling of key personnel may continue.

Additionally, Trump mentioned over the weekend that he had offered the White House press secretary role to Dana White, the head of the Ultimate Fighting Championship. Although Trump later claimed the offer was a joke, the two men are scheduled to meet on Monday, hinting at potential further developments in the administration’s communications team.