Clinton also criticised Trump's address at his inauguration, which she attended in January out of what she deemed a sense of duty, as a speech that spoke to the anger of some white voters.
Sanders repeatedly attacked her as a representative of the political establishment, a message Trump echoed.
One of Pauley's toughest questions for Clinton wasn't about her e-mail server or the pain Wall Street speeches. She also blames his decision to reveal that emails were found on the laptop of disgraced congressman Anthony Weiner, just 11 days before the election, for stopping her momentum.
She told Pauley she was "gob-smacked" by her defeat in the 2016 election, but was proud nevertheless of her effort. Al Franken, (MN). "I think she has a right to analyze what happened".
After Ms Clinton lost, many were furious with her for what they deemed basic mistakes - her failure to visit the state of Wisconsin, for instance - and her failure to connect with younger voters.
"Millions of white people", Clinton said, nodding.
"So there I was, on the platform, you know, feeling like an out-of-body experience", she recalled.
Clinton said the "most important of the mistakes" she made "was using personal email", and that she "missed a few chances" during her campaign. "I was just gobsmacked, wiped out". I thought his behavior, as we saw on the Access Hollywood tape, was deplorable.
Trump responded at the time by saying that Clinton was using the "oldest play in the Democratic playbook".
"I thought Trump was behaving in a deplorable manner".
"But I am not done with politics because I literally believe that our country's future is at stake", Clinton said, offering no further details. It did not matter to them, ' Clinton said.
PAULEY: But you offended some people who didn't personally feel deplorable at all. For the majority of Americans, he will be the bigoted, sexually assaulting, reality television star who only won the presidency with help from Putin and the Russians.
"I understood that there were many Americans who, because of the financial crash, there was anger".
"I don't know quite what audience he was playing to", Clinton remarked. It was presented in such a negative way, and I never could get out from under it.