A new book about the inner-workings of Hillary Clinton's failed presidential campaign quotes the former Secretary of State as saying she doesn't plan to run for political office again.
The book says that Mrs Clinton was told by one of her advisors in early 2016 that Mr Trump could beat her to the presidency.
Democrats have many theories for why Hillary Clinton lost the presidential election to Donald Trump.
And Clinton herself hasn't given a definitive answer as to whether or not she'll make another attempt to move back into the White House.
When that did not work, he called Clinton campaign chairman John Podesta with the same message.
Though she faced pressure from some top advisors to stay in the race, Clinton's mind was made up after her call with Obama, the authors say.
MORE's handling of the scandal surrounding her use of a private server was "political malpractice", a new book reveals.
In their introduction, the authors of "Shattered" admit they "thought there was a pretty good chance" they would be "writing the inside story of Hillary shattering what she had called the 'highest, hardest glass ceiling'".
However, the book claims that Obama urged Clinton to declare defeat and not to "drag it out".
Last year, the FBI investigated Clinton's use of a private email server and whether she had improperly stored or transmitted classified information during her tenure as secretary of state.
Parnes and Allen's book also reports that former President Bill Clinton didn't think his wife should issue an apology for the email debacle.
Clinton chose to issue a much more hopeful tone in the concession speech she delivered the day after losing to President Twitter Fingers.
"I'll be supportive of the country's success and that means your success as president". She stopped speaking directly to her campaign manager by the end of February 2016. The script sent to Sanders had him praising Clinton's ideas on healthcare and education, while slamming Trump's economic policy.
When Trump eventually came on the line Clinton conceded graciously.
She told him she knew she had "let her country down" and that his legacy lay "shattered at Donald Trump's feet".
It was after her brief conversation with Trump that Clinton apologized to Obama.
Hillary distributed power so broadly that none of her aides or advisors had control of the whole apparatus.