President Donald Trump revealed on social media Monday that Susie Wiles, his White House chief of staff, was diagnosed with breast cancer, and that she would be starting treatment “immediately” while remaining at the White House “virtually full time.”“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,” Trump wrote on his social media platform Truth Social. “She has a fantastic medical team, and her prognosis is excellent! During the treatment period, she will be spending virtually full time at the White House, which makes me, as President, very happy!”Wiles made headlines last year for her surprisingly candid interview with Vanity Fair in which she described Trump as having an "alcoholic's personality,” and Vice President JD Vance as a “conspiracy theorist.”Nevertheless, Trump has stood by his top White House official, and vowed to stand alongside her as she undergoes treatment.“Her Strength and her Commitment to continue doing the job she loves, and does so well, while undergoing treatment, tells you everything you need to know about her,” Trump wrote.“Susie, as one of my closest and most important advisors, is tough and deeply committed to serving the American People. She will soon be better than ever! Melania and I are with her in every way, and we look forward to working with Susie on the many big and wonderful things that are happening for the benefit of our Country!”