President Joe Biden once told former President Barrack Obama that the "people don't like" Hillary Clinton. 

This is according to a new report from the Daily Mail.

The report is based on a soon-to-be-released book by Hunter Walker and Luppe B. Luppen, titled, The Truce: Progressives, Centrists, and the Future of the Democratic Party. 

The authors, according to the Daily Mail, at one point, revealed a phone conversation that took place between Obama and Biden on election night in 2016.

The circumstances

According to the Daily Mail, the book states that Biden called Obama when it became clear that Clinton, the Democratic Party's candidate, was going to lose to then-candidate Donald Trump, the Republican Party's candidate in the 2016 presidential election.

"Biden was watching the 2016 returns at the vice president's Naval Observatory residence with a small group of aides when the mood turned 'mournful' as it became apparent that Clinton would lose to Donald Trump," the outlet reports.

It was at this point that Biden is said to have phoned Obama.

The Daily Mail reports the book as stating that, "at around 1:30 a.m., Biden called the White House switchboard and asked to speak with Obama."

This is when Biden, apparently, got really honest with Obama about Hillary Clinton.

"People just don't like her."

The book reports Biden as telling Obama, on this phone call, that Clinton lost because the people "don't like" Clinton. "Boss I told you. People just don't like her," Biden is reported to have said.

A big question here is whether this phone conversation really took place. The authors of the book claim that they got this information from a source that was familiar with the conversation. As usual, the source is anonymous, which is something that has to be kept in mind when considering the reliability of the contents of the book.

At the time of this writing, neither Biden nor Obama nor Clinton has commented on this alleged conversation between Obama and Biden.

If the conversation is legitimate, then not only did Biden criticize Clinton, but, in a way, he also criticized his old boss - Obama. Obama, of course, vigorously backed Clinton in the 2016 presidential election. So, what Biden essentially did on the phone was tell Obama that he made the wrong choice by backing Clinton in 2016.

It would certainly be interesting to know how Obama responded, but it does not appear that this information has been revealed.