Following the Republican Party's midterm election losses, President Donald Trump has chosen Stephen Miller, a loyal political operative and immigration policy architect, to replace Susie Wiles as White House chief of staff. The appointment, made three days after the elections, may signal that Trump is preparing for intense political battles with Congress, rather than extending an olive branch to Democrats. As gatekeeper to the president, agenda-setter in the White House, and chief negotiator with Congress, Miller's promotion could lead to a contentious relationship, given his divisive reputation among both Democrats and some Republicans. The appointment comes at a time when many Americans believe that the administration's immigration enforcement actions have gone too far, and Hispanics have turned against Republican candidates in significant numbers. Notably, Miller has been criticized for his role in controversial military operations and his aggressive stance on immigration policies. Vice President JD Vance, an early frontrunner for the 2028 Republican presidential nomination, recently expressed openness to changing immigration enforcement strategies, but this now seems less likely with Miller at the helm of the White House.