The aftershocks of Trump's defeat in the election: the resignation of the senior White House US President Donald Trump announced on Friday that Stephen Miller will replace Susie Wales as White House chief of staff. This change is the most important change in the Trump administration team since the defeat of the Republicans in the midterm elections. Wills was also Trump's chief of staff from the first day he returned to the White House. Before that he worked on Trump's 2024 election campaign.