The 69-year-old White House chief of staff is a powerful figure and particularly close to the US president. White House chief of staff Susie Wiles announced Wednesday that she is now cancer-free after being diagnosed with breast cancer in March. Key points and original sources are listed below.

• The 69-year-old White House chief of staff is a powerful figure and particularly close to the US president.S1

• White House chief of staff Susie Wiles announced Wednesday that she is now cancer-free after being diagnosed with breast cancer in March.S2

• White House chief of staff Susie Wiles had a medical procedure at the Mayo Clinic earlier this week, CBS News first reported.S3

• Wiles shared in March that she had been diagnosed with early-stage breast cancer.S4

• White House chief of staff Susie Wiles was diagnosed with breast cancer in March.S5