Wiles announces cancer diagnosis, plans to stay in job

White House chief of staff Susie Wiles has breast cancer, President Donald Trump announced on Truth Social on Monday afternoon.

Wiles, a longstanding fixture of Trump’s campaign orbit, has been his chief of staff since he took office for his second term in 2025. Trump said Wiles had “early stage breast cancer” and an “excellent” prognosis. She will be staying on as Trump's chief of staff while she undergoes treatment, the president said.

“During the treatment period, she will be spending virtually full time at the White House, which makes me, as President, very happy! 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.

The president called Wiles one of his “closest and most important advisors.”

Wiles joined Trump at an event at the White House shortly after the president announced her diagnosis, sitting next to him at a meeting of Kennedy Center board members.

The first woman to serve as a president’s chief of staff, Trump frequently talks about Wiles publicly and commends her power in the White House. He has called her the “most powerful woman in the world” and nicknamed her “Susie Trump.”

Wiles had a long political career in Republican politics before joining Trump’s political campaign in 2016 as the Florida campaign chair. She became his campaign manager alongside Chris LaCivita in 2022, ahead of Trump’s win in 2024.