New York Times bestselling author Ed Klein has just published his fourth book about the Clintons since 2005, Guilty as Sin. Klein had told how Bill Clinton enjoyed foot rubs, massages and romps in his presidential library with female interns and has described new details about Hillary's medical crises. In this exclusive excerpt he explains Hillary's relationship with top aide Huma Abedin. Guilty as Sin is available in bookstores and for order from Amazon.

Huma Abedin came down the stairs in Chappaqua, rubbing her puffy eyes and looking a bit disheveled.

'Did you get your power nap?' Hillary asked.

She placed both hands on Huma's neck and began massaging her shoulders.

'Huma smiled, but looked embarrassed,' recalled one of Hillary's oldest friends, who had been invited along with a group of women to spend the afternoon with Hillary, and who spoke on the condition of anonymity because the Chappaqua get together was private. 'Huma's tough, but there are times when she can look like a shy little girl, especially when Hillary displays an interest in her in front of other people.'

Huma went off to a corner of the room to check on Hillary's emails, and one of the women handed Hillary a glass of Chardonnay. After a sip, Hillary recounted a conversation she had had with her lawyer, David Kendall, about the enemies who were closing in on her from all sides.

Hillary Clinton massaged top aide Huma Abedin's shoulders at her Chappaqua, New York, home, which made Abedin 'embarrassed'

Trey Gowdy's Benghazi committee was about to release its long-anticipated report about Hillary's responsibility as secretary of state for the deaths of Ambassador Christopher Stevens and three other Americans.

'They're going to savage me,' Hillary said.

Indeed, the committee's Republican majority viewed Hillary's failure to provide the Benghazi consulate with adequate security as an unpardonable dereliction of duty.

Clinton once called FBI director James Comey an 'a**hole', saying he'd 'been after' her for years

The Republicans were equally outraged that Hillary had lied to the families of the dead Americans, telling them that the attack on the consulate was a spontaneous response to an anti-Islamic video, when in fact she had emailed Chelsea on the night of the deadly assault that it was a well-planned, al-Qaeda–sponsored attack.

On another front, U.S. District Court Judge Emmet G. Sullivan had granted Judicial Watch the right in its FOIA case to take testimony from Huma, Cheryl Mills, and Bryan Pagliano, the IT specialist who had been granted immunity from criminal prosecution by the Justice Department in return for testimony regarding Hillary's use of her private email server.

Pagliano's immunity did not cover civil litigation such as the Judicial Watch case, and Hillary worried he might offer damaging testimony.

Worse yet, Judge Sullivan had ruled that Hillary herself might have to appear in court to answer questions under oath.

Then, of course, there was Hillary's nemesis, FBI Director James Comey.

'That a**hole has been after me forever,' Hillary said, according to the friend who was interviewed for this book. 'Well, let him bring it on!' she added, pumping her fist in the air in a gesture of defiance.

To top it all off, Bernie Sanders had vowed to take the fight for a socialist 'revolution' all the way to the Democratic National Convention in Philadelphia in late July.

'Bernie has s**t all over my nomination,' Hillary said. 'That weasel tries to spoil everything.'

Sanders had gotten under Hillary's skin by challenging her sense of entitlement—that she was 'owed' her party's nomination—and when she called him a 'weasel,' she raised her arm as if to strike him, and half the wine in her glass went flying through the air.

'Good thing it wasn't Cabernet,' she said.

While lunch was served, someone asked Hillary about Bill.

'I have no f***ing idea where he is,' she said. 'Probably with some . . . '

She let the sentence hang in the air.

She went on to say that Bill was raising money for her campaign, but that she rarely saw him. He ran a completely separate operation from hers, wrote his own speeches, and arranged his own transportation. Her staff in Brooklyn had no idea where he was going next and what he was going to say.

Abedin becomes a 'shy little girl' when 'Hillary displays interest in her' in front of others, a source said

Chelsea Clinton's relationship with Abedin is 'remote and cold' and they have what appears to be a sibling rivalry

Hillary had long ago learned to live with Bill's idiosyncrasies (for want of a better word), but she was worried about recent signs that he was losing it.

'He blew up at the Black Lives Matter people,' she complained, 'and the whole episode was caught on video. That wasn't very f***ing helpful. Then he got into an argument in front of the TV cameras with a Bernie supporter over his welfare program when he was president. Not f***ing helpful!'

In a fit of pique, she grabbed a handful of her hair and in an odd mannerism, which her women friends had seen before, she yanked at the hair so hard it looked as though she was trying to pull it out.

New York Times bestselling author Ed Klein has just published his fourth book about the Clintons since 2005, Guilty as Sin

'Hillary don't!' one of the women said.

Huma, who was sitting across the room, started to giggle. She caught Hillary's eye, and Hillary stopped pulling on her hair.

'Huma's seen this hair-pulling routine a hundred times, and she knows the best way to handle it is to make light of it,' her friend recalled.

Hillary got up and said to Huma, 'Okay, okay, let's take a quick walk to get the blood flowing before we get back to work.'

Chelsea Clinton was respectful of Huma when her mother was around, but she treated Huma with undisguised contempt when Hillary wasn't present. In fact, Chelsea seemed happiest when her mother chewed out Huma for doing something that displeased her.

Hillary was aware of Chelsea's feelings, and she dismissed the whole thing as a case of natural sibling rivalry.

But the highly charged emotional triangle that existed among Hillary, Huma, and Chelsea was more complicated than that.