The aftershocks of Trump's defeat in the elections: the resignation of the senior official in the White House The President of the United States announced today 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 Trump's chief of staff from the first day he returned to the White House and worked on Trump's 2024 campaign.