Stephen Miller: Trump's new chief of staff and immigration hardliner

President Donald Trump has promoted Stephen Miller, the architect of his toughest immigration policies, to White House chief of staff following the Republican loss of Congress in the midterm elections. The appointment has energized Trump's MAGA base while drawing sharp criticism from Democrats. Miller, 41, has served as deputy chief of staff and homeland security adviser in Trump's second term, and previously worked as an adviser and speechwriter in the first administration. He is known for driving immigration enforcement, including setting arrest targets of 3,000 per day and expanding ICE operations to target all undocumented immigrants. Miller founded the conservative advocacy group America First Legal after Trump's 2020 election loss and has advocated for aggressive foreign policy, including potential military action to acquire Greenland. His wife, Katie Miller, is a conservative influencer and former communications aide in Trump's first administration.