A post by @DeItaone on X.

President Trump announced Stephen Miller will serve as White House chief of staff starting Monday, according to a post from Walter Bloomberg (@DeItaone). The move elevates Miller, a longtime architect of Trump's hardline immigration agenda, to the top staff role in the administration. The announcement came via social media rather than a formal briefing, leaving the exact timing and scope of the transition unclear. The chief of staff position is pivotal for setting White House policy priorities and managing relations with Congress. Markets will watch whether the appointment signals a sharper focus on immigration enforcement and executive action in the coming weeks.