"He was quite successful in referencing a nostalgia that would give hope, comfort, settle grievances for millions of people who were upset about gains that were made by others", Clinton said.
The book, published by CBS-owned Simon & Schuster, includes an accounting for numerous missteps and strategic errors that Clinton said she made during the campaign, and for which she explicitly takes responsibility.
On November 9, the morning of her concession speech, she put on a fearless face in public: for her campaign team, for her supporters, for the American public. And there was resentment.
Hillary Clinton has blamed a whole lot of people for losing the election. "I believe [only offering answers] was a mistake because a lot of people didn't want to hear my plans - they wanted me to share their anger". It was presented in such a really negative way, and I never could get out from under it.
Discussing her life just after the election, Clinton told a concerned-looking Pauley, "Off I went into a frenzy of closet cleaning".
Clinton answered no when asked if she had any inkling that the election's outcome might not be in her favor.
"The forces that were at work in 2016 were unlike anything that I've ever seen or read about", she said.
Clinton said she called the President-elect and the White House after having the realization. "It was a very hard transition".More news: Venus Williams advances into US Open quarter-finals
"I just kinda went in the bedroom, laid down on the bed, just thought, 'Okay".
When Mr Trump delivered his inaugural address on January 20, Ms Clinton sat on the dais behind him, with her husband, Bill Clinton, and his former presidents George W Bush and Jimmy Carter.
For poor Hillary Clinton, some things just never change.
However, Clinton added she was not finished with politics entirely because our "future is at stake".
What Happened, Clinton's new book on the 2016 election, will be available for purchase on Tuesday.
The interview aired in advance of the release later this week of her book "What Happened". "I take responsibility for all of them".
In the "CBS News Sunday Morning" interview, Clinton echoed that line.
This week, Clinton is scheduled to appear on ABC's "The View" and the popular center-left podcast "Pod Save America", and she will attend a book signing in NY.
"I love Hillary", said Sen. "I also had the support of my family".