US President Donald Trump (C) joined by US Speaker of the House Mike Johnson and White House Chief of Staff Susie Wiles, speaks during a lunch with the Kennedy Center Board Members in the East Room of the White House on March 16, 2026 in Washington, DC. US President Donald Trump's chief of staff Susie Wiles has been diagnosed with breast cancer but will continue to work during treatment, Trump said Monday. The first woman to ever work as White House chief of staff, 68-year-old Wiles has been widely credited with driving Trump's second presidency forward behind the scenes. (Photo by Annabelle GORDON / AFP via Getty Images)