Mr. Merletti confirmed the book’s account in an interview on Friday and further described his interactions with the bureau. The F.B.I. special agent who interrogated him, Jennifer Gant, could not be reached Friday but was quoted in the book saying she could not recall making the accusations Mr. Merletti recounted. Paul Bresson, an F.B.I. spokesman, declined to comment.

Reached in California, where he is now dean of the law school at Pepperdine University, Mr. Starr said he did not want to talk about interactions between the F.B.I. and the Secret Service during his investigation. Robert W. Ray, who succeeded Mr. Starr, did not respond to telephone or e-mail messages late Friday.

The new book, “The Death of American Virtue: Clinton vs. Starr,” written by Ken Gormley, a law professor at Duquesne University, and published by Crown, re-examines the scandals and investigations that marked Mr. Clinton’s presidency and adds new details to the public understanding of them. Mr. Gormley secured unusual cooperation from nearly all of the main players, including Mr. Clinton, Mr. Starr and Ms. Lewinsky.

As first reported by Politico, the book quotes Ms. Lewinsky as saying that she believed Mr. Clinton did lie under oath to a grand jury and asserts that the former president, while he was Arkansas’s governor, did have a romantic affair with Susan McDougal, his onetime Whitewater partner who went to jail rather than testify against him.

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It also reports that Susan Webber Wright, the federal judge who oversaw the Paula Jones sexual harassment case in which Mr. Clinton was asked about his relationship with Ms. Lewinsky under oath, considered finding Mr. Clinton in criminal contempt during the Senate trial, a move that could have changed the outcome. Instead, Judge Wright waited until two months after the trial to find him in contempt.

And the book says that Mr. Starr’s successor, Mr. Ray, had been prepared to indict Mr. Clinton right after he left the White House if he did not agree to admit misconduct. On his last full day in office, Mr. Clinton acknowledged that he had given false testimony about Ms. Lewinsky and agreed to the suspension of his law license.

Aides to Mr. Clinton, who gave the author three interviews, declined to comment on Friday, as did Ms. Lewinsky.

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In an interview, Mr. Starr said he had not read the book yet but expressed faith in the author. “I have the highest regard for Ken Gormley,” he said. “He’s very intelligent, he’s very comprehensive and he’s very thorough.”

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The book rejects the image of Mr. Starr as a rabid zealot out to get Mr. Clinton, but concludes he deferred to his prosecutors and should have followed his instinct to turn the Lewinsky matter over to Congress without summoning the president to testify before a grand jury. Mr. Starr said Friday that “reasonable minds can differ on that” but added, “All things considered, we took the best course.”

The battle between investigators and the Secret Service led all the way to the Supreme Court. Mr. Starr wanted agents to testify about what they saw to prove that Mr. Clinton was lying about his interactions with Ms. Lewinsky. The Secret Service, led by Mr. Merletti, argued that forcing agents to testify would destroy the trust necessary to protect the president’s life, but the Supreme Court rejected the argument.

Mr. Merletti, now a senior vice president for the Cleveland Browns, revealed more details about the fight in the book and the interview. He said he believed that the F.B.I. was trying to “set up” the Secret Service or the president.

He recalled that in August 1998, the F.B.I. told him a dress owned by Ms. Lewinsky did not have the president’s DNA on it, even though it did, apparently to try to catch Mr. Merletti in a conspiracy if he passed along the false information to Mr. Clinton.

The meeting where he said he was accused of trading silence for a promotion came in January 2001, long after the Senate trial.

“They came up with this theory that I entered into a deal with the president where I would keep my mouth shut about Monica Lewinsky — which I had no idea was going on — and in return I would become director of the Secret Service,” Mr. Merletti said Friday.

“They then went on to say that I went on to tell the president, ‘Well, I not only want to be director, but you have to supply me with women.’ ” Mr. Merletti said he was still flabbergasted. “I’m not kidding,” he said. “It was like, ‘Are you out of your mind?’ ”