Former President Obama viewed Democratic presidential nominee Hillary Clinton Hillary Diane Rodham ClintonDemocratic groups using Bloomberg money to launch M in Spanish language ads in Florida The Hill's Campaign Report: Presidential polls tighten weeks out from Election Day More than 50 Latino faith leaders endorse Biden MORE's 2016 loss to President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE as a "personal insult" and a defeat of his own legacy, according to new updates to a 2017 book.

Updates to New York Times correspondent Peter Baker's history of the Obama presidency, "Obama: The Call of History," published by the Daily Mail, detail how the president was overcome with anger in the days following Clinton's defeat to Trump, which Obama saw as a result of her inability to translate his policy successes into a winnable message.

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"Obama may not have been on the ballot, but it was hard not to see the vote as a 'personal insult,' as he had called it on the campaign trail," Baker writes, according to Fox News.

"This stings," Obama said after the election, according to Baker. "This hurts."

Struggling with the results of the election, Obama found himself thinking that the American people "simply could not have decided to replace him with a buffoonish showman whose calling cards had been repeated bankruptcies, serial marriages and racist dog whistles," Baker continued.

"I've got the economy set up well for him. No facts. No consequences. They can just have a cartoon," he told one aide after the election, according to the book.

Baker wrote that Obama directed much blame at his former secretary of State, who the former president thought ran a "soulless" campaign.

"No one forced her to take hundreds of thousands of dollars from Goldman Sachs and other pillars of Wall Street for speeches," Baker writes, according to the Mail. "No one forced her to run a scripted, soulless campaign that tested eighty-five slogans before coming up with 'Stronger Together.' "

Obama largely refrained from criticizing his successor during Trump's initial months in office, but has since joined the chorus of Democrats who have issued sharp criticism of Trump's presidency.

In 2018, he actively campaigned for Democratic candidates as his party saw record gains in the House during November's midterm elections.