Huma Abedin: Hillary Clinton stayed with her husband because it was "right for herself, her family and her country"

Huma Abedin has spent much of her career alongside Hillary Clinton. She was there when President Bill Clinton's affair with White House intern Monica Lewinsky was revealed, and was still close with Clinton decades later, when her own unraveling marriage to disgraced former Congressman Anthony Weiner threatened to derail Clinton's 2016 presidential campaign. 

After 25 years in the background, Abedin is now sharing what it was like to be with Clinton when the Lewinsky affair became public. In her new book, "Both/And: A Life in Many Worlds," Abedin writes that she "was sad and angry on behalf of the woman who is now my boss" after Mr. Clinton admitted he had lied about his relationship with Lewinsky. 

Abedin told "CBS Evening News" anchor and managing editor Norah O'Donnell in a "CBS Sunday Morning" interview that she was also "confused."