US President Donald Trump has appointed longtime adviser Stephen Miller as his new White House chief of staff, placing one of the architects of his hardline immigration agenda at the centre of his administration as he prepares for an expected political confrontation with Democrats following the Republican Party's losses in the midterm elections.
Trump announced the staffing change on Friday, describing Miller as one of his "most trusted" advisers. Miller, 41, will take over the role on Monday, replacing Susie Wiles, who has served as chief of staff throughout Trump's second term.
The appointment comes as Democrats prepare to launch sweeping investigations into the administration, including its immigration enforcement policies. With Democrats gaining control of Congress, Miller is expected to play a key role in defending the president's agenda and managing the administration's response to congressional scrutiny.
Miller's elevation is also being viewed as a sign that Trump intends to maintain his America First agenda rather than retreat from some of his most controversial policies following the electoral setback.
"The mission now is more clear than ever: Fight with all…