"I am hopeful, but I really think hope needs to be linked to a strategy for dealing with what we are facing", she told the audience.
Clinton said the book was "certainly going a lot further" than she's gone before because she thinks the current political climate demands she goes "as far as I can".
Clinton lambasted the DNC as being "bankrupt" and on "the verge of insolvency", adding that she "inherit [ed] nothing" and that the DNC's "data was mediocre to poor". I get the nomination, so I'm now the nominee of the Democratic Party.
"That is incredibly unsafe", she said.
"People in covfefe houses shouldn't throw covfefe", Clinton tweeted.
President Trump's seemingly incomplete Twitter message followed the announcement that the White House's director of communications, Michael Dubke, had resigned just three months into the job.
The tweet remained online for some 5½ hours, drawing worldwide ridicule.
After the election, Comey began investigating Trump's alleged ties to Russia as well as a series of cyber attacks against Clinton's campaign, which Democrats claimed were conducted by Russian hackers.
Clinton dismissed Wednesday the controversy surrounding her use of a private email server as secretary of state as a "nothing-burger" and blasted The New York Times for covering her email scandal "like it was Pearl Harbor".
Therriault, who had left the DNC in summer 2016, asserted that his data team tried to warn the Clinton campaign that they were vulnerable in so-called Democratic "Blue Wall". Even with the media cheerleaders behind her, Trump won over Democrats when they heard his message firsthand.
But her campaign ultimately saw measurable drops with female voters in the suburbs of Pennsylvania and Wisconsin, in particular, Clinton said.
While she said she takes "responsibility" for the loss, Clinton appeared reluctant to publicly discuss her own campaign mistakes.
"He dumps that on me on October 28, and I immediately start falling", she said.