Tom Brenner/AFP via Getty Images President Donald Trump has announced that White House Chief of Staff Susie Wiles had been diagnosed with breast cancer. The president made the shock announcement on Truth Social on Monday morning, saying she would have treatment immediately. “Susie Wiles is an incredible Chief of Staff, a great person, and one of the strongest people I know but, unfortunately, she has been diagnosed with early stage breast cancer, and has decided to take on this challenge, IMMEDIATELY, as opposed to waiting,” he wrote. Read more at The Daily Beast.