After the Republicans' midterm setback, Donald Trump has made one of the biggest staffing changes of his second term, replacing chief-of-staff Susie Wiles with longtime aide Stephen Miller. Why did Trump turn to one of his most hardline advisers, and what could Miller's promotion mean for the rest of Trump's presidency? Chapters: 00:00 Trump replaces Susie Wiles with Stephen Miller 01:40 Why did Trump make the chief of staff switch?