Sally Yates learned she had breast cancer days before Russia investigation testimony

Less than a week before Sally Yates was set to testify to Congress about Russian interference in the 2016 election, the former acting attorney general was diagnosed with a rare breast cancer. 

"This was one of those times where the personal and the professional collided. And so it was, I think, just about five days before I was to testify in the Senate Judiciary Committee about the Russia investigation that I got the final diagnosis that it was invasive cancer," Yates told "CBS Evening News" anchor and managing editor Norah O'Donnell. 

Yates thought about postponing her testimony but, she said, it would have further fueled conspiracies about the Russia investigation.