The new book coming out later this month by a former Secret Service agent who was assigned to the Clinton detail in the White House is going to be the blockbuster political read of the summer.

The book, Crisis of Character: A White House Secret Service Officer Discloses His Firsthand Experience with Hillary, Bill, and How They Operate, is already #1 on Amazon.com, and the buzz it's created is astonishing.

Editor Lifson gave some details from the book in his blog post yesterday.  Today, the gossip column Page Six in the New York Post has some additional shockers.

Author Gary Byrne, a 29-year military and law enforcement veteran, was in a unique position to witness the massive emotional instability of Hillary Clinton.

The book claims she repeatedly screamed obscenities at her husband, Secret Service personnel and White House staffers — all of whom lived in terror of her next tirade.

Secret Service agents had discussions about the possibility that they would have to protect Bill from his wife’s physical attacks, Byrne writes, and the couple had one “violent encounter” the morning of a key presidential address to the nation.

Meanwhile, a paranoid Hillary Clinton tried to have the Secret Service banned from the White House and once tried to ditch her security detail, Byrne says.

“Hillary Clinton is now poised to become the Democratic nominee for president of the United States, but she simply lacks the integrity and temperament to serve in the office,” he writes.

“From the bottom of my soul I know this to be true. And with Hillary’s latest rise, I realize that her own leadership style — volcanic, impulsive, enabled by sycophants, and disdainful of the rules set for everyone else — hasn’t changed a bit.”

The book isn’t set for release until June 28, but pre-orders have sent it to No. 1 on Amazon’s best-seller list.

Byrne — who was subpoenaed to testify before the grand jury that investigated Bill Clinton’s affair with intern Monica Lewinsky — claims in the book that he interrupted the president’s sexual shenanigans in the White House.

Byrne says he walked into a room where the president was “involved inappropriately with a woman” who was neither his wife nor Lewinsky.

And he says he once threw out a White House towel stained with a woman’s lipstick — and the president’s “bodily fluids.”

Byrne describes arriving for work one day in 1995 following a loud fight between the Clintons the night before.

The dust-up, he says, left a light blue vase “smashed to bits” and Bill sporting a “real, live, put-a-steak-on-it black eye.”

Byrne’s book amplifies earlier allegations of mistreatment of Secret Service by Hillary Clinton — including in 2014’s “First Family Detail” by former Washington Post reporter Ronald Kessler and last year’s “The Residence: Inside the Private World of the White House,” which also detailed a fight between Bill and Hillary over the Lewinsky affair.

Are we so inured to Hillary Clinton's reported outbursts that the revelations in this book won't impact the election?  I think that's a definite possibility.  Most who are reading this are political junkies, or at least have more than a passing interest in politics.  But most people who will vote in November will not have read the book, or even be aware of its existence.

And if they are, the voting public has become so cynical that they will dismiss the allegations as just part of the endless game of politics.  Ten years ago, this book might have knocked Clinton out of the race.  But emotional stability and temperament have slipped far down the list of requirements for high office in the minds of most voters.  Witness Donald Trump's popularity.

But as a peek inside the Clinton White House, the book promises to deliver some stunning information.