Hillary Clinton said she felt like she "let everybody down" when she lost the 2016 presidential election and admitted she had not prepared a concession speech.

After she called President-elect Donald Trump on Election Night, Clinton said she then called President Barack Obama.

"I felt like I had let everybody down," Clinton said in an interview with CBS' "Sunday Morning." "I had not drafted a concession speech. I had been working on a victory speech."

Clinton did not deliver a concession speech that night. Instead, her campaign chairman, John Podesta, told supporters that the contest wasn't over and to go home. Not until the next day did she give the concession speech, and it had been reported that it was Obama who advised her to concede.

Clinton is making media appearances this week as her book, "What Happened," is set to go on sale next week. Her publishing company began releasing some excerpts from the book as early as late July to begin building public excitement.

During the interview that aired Sunday, the former first lady, senator, and secretary of state explained her "basket of deplorables" remark during the campaign.

"Well, I thought Trump was behaving in a deplorable manner. I thought a lot of his appeals to voters were deplorable. I thought his behavior, as we saw on the 'Access Hollywood' tape, was deplorable," Clinton said.

Her book will delve into gender politics, Clinton added.

"I started the campaign knowing that I would have to work extra hard to make women and men feel comfortable with the idea of a woman president," she said. "It doesn't fit into the stereotypes we all carry around in our head. And a lot of the sexism and the misogyny was in service of these attitudes, like, ‘You know, we really don't want a woman commander in chief.'"

Clinton told CBS host Jane Pauley that she was trying to run a traditional campaign while Trump was trying to run a reality show, and says there are elements of the Trump presidency that prove she's right.

"We have a reality show that ends up in the election of a president, he ends up in the Oval Office, ‘Boy it's so much harder than I thought it'd be. This is really tough. I had no idea.' Well, yeah, because it's not a show, it's real. It's reality for sure."

Clinton's time in the spotlight is not sitting well with all Democrats, however.

"The best thing she could do is disappear," one former Clinton fundraiser and surrogate told the Hill. "She's doing harm to all of us because of her own selfishness. Honestly, I wish she'd just shut the fuck up and go away."