Fox News anchor Chris Wallace on Friday dismissed former FBI Director James Comey James Brien ComeyDemocrats fear Russia interference could spoil bid to retake Senate Book: FBI sex crimes investigator helped trigger October 2016 public probe of Clinton emails Trump jabs at FBI director over testimony on Russia, antifa MORE's forthcoming book, "A Higher Loyalty: Truth, Lies, and Leadership,” as lacking substance, stating he was surprised by "how bitchy the book is.”

The commentary comes as discussion around excerpts of Comey's book have dominated cable news coverage ahead of its highly anticipated released on Tuesday.

“What strikes me is how little new there is in the book," Wallace said. "We get a lot of opinions, unpleasant opinions of the president, by James Comey. But in terms of hard facts, people are talking about bombshells; there are none."

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"Basically everything that he said in terms of the facts of what the president did, he already has testified before a congressional committee, and in fact at one point he says while he thinks the president's behavior may have been unethical, it may not have been illegal," the “Fox News Sunday” host added.

“The other thing that surprises me, frankly, is how bitchy the book is," Wallace continued. "Comey goes out of his way to say that the president isn't as tall as he thought he was. He checked out the size of his hands the first time they shook hands."

“One could argue that by getting into the kind of political food fight, that James Comey has done more damage to his own reputation than he has President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's," he concluded.

On Thursday evening, news outlets began reporting tidbits and highlights from “A Higher Loyalty,” including Comey comparing Trump to a mob boss and saying he is “untethered to the truth.”

Comey is set for a media blitz in the coming days in promotion of the book, beginning with a Sunday night interview with ABC News’s George Stephanopoulos.

ABC released a teaser video on Wednesday showing Stephanopoulos asking Comey numerous questions while cutting away from the former FBI chief’s answers.

“How strange is it for you to sit here and compare the president to a mob boss?” Stephanopoulos, a former Clinton White House communications director, asks Comey in the preview.

Stephanopoulos also asks if Comey thinks Trump obstructed justice and if he believes he should be impeached.

The interview will air on a special edition of ABC's "20/20" on Sunday night, marking the first television interview Comey has done since being fired last May.

Comey is also scheduled to sit down for an interview with CNN’s Jake Tapper on April 19 and to participate in a CNN town hall event on April 25.

Comey will also appear with MSNBC’s Rachel Maddow on April 19, Fox News's Bret Baier on April 26 and PBS's Judy Woodruff on April 30.

“A Higher Loyalty” is already at the top of Amazon's best-seller list.