The unprecedented decision by James Comey, the FBI's director, to insert the law enforcement agency into the midst of a presidential election has been roundly criticized by everyone from former George W. Bush attorney general Alberto Gonzalez to Fox News' Chris Wallace. But the campaign of Republican presidential nominee Donald Trump is so pleased by the agency's decision to announce the discovery of new emails that may be related to his Democratic rival Hillary Clinton's use of a private email server, it's now openly boasting of gaining advance notice of the move by the FBI.

Appearing on Fox News on Oct. 25, top Trump surrogate Rudy Giuliani could barely contain his excitement as he teased a blockbuster development that would shake up the presidential race in the GOP nominee's favor.

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“Does Donald Trump plan anything except a series of inspiring rallies?” Brian Kilmeade, host of "Fox & Friends," asked.

“Yes,” Giuliani replied with a massive grin.

“What?” co-host Ainsely Earhardt curiously asked.

“Ha ha ha,” Giuliani laughed. “You’ll see.”

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The former New York City mayor promised, “We got a couple of surprises left. . . . And I think it’ll be enormously effective."

He continued: "I think [Trump’s] got a surprise or two that you’re going to hear about in the next few days. I’m talking about some pretty big surprises. . . . And I do think that all of these revelations about Hillary Clinton finally are beginning to have an impact.”

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Three days later, on Oct. 28, Comey's letter to congressional leaders about the FBI's review of the new Clinton emails was leaked by Republicans.

And now this Friday morning, Giuliani returned to "Fox & Friends," giddy over the tightening of polls in battleground states.

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Echoing reports that FBI agents supportive of Trump's campaign had been enraged by Comey's decision in July to not file criminal charges against the former secretary of state for her use of a private email server, Giulani told Fox News that “outraged FBI agents” had complained to him about how the Clinton investigation had been handled and thought Comey's latest "bombshell" announcement would have come sooner.

"To tell you the truth, I thought it was going to be three or four weeks ago," he said.

Unprompted, Giuliani then attempted to distance himself from appearing to have played a role in orchestrating the last-minute October surprise.

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“I did nothing to get it out; I had no role in it,” Giuliani said. “Did I hear about it? You’re darn right I heard about it, and I can’t even repeat the language that I heard from the former FBI agents.”

WATCH: Rudy Giuliani admits that Trump campaign had advanced warning from the @FBI about Comey's letter. pic.twitter.com/7AOJopgQOB — Correct The Record (@CorrectRecord) November 4, 2016

Friday afternoon, Democratic Reps. Elijah E. Cummings and John Conyers, the Ranking Members of the House Committees on Oversight and Government Reform and Judiciary, asked the Justice Department’s internal watchdog to investigate leaks of information about the FBI investigation, citing Giuliani's comments.

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“It is absolutely unacceptable for the FBI to leak unsubstantiated ― and in some cases false ― information about one presidential candidate to benefit the other candidate. Leaking this information to former FBI officials as a conduit to the Trump campaign is equally intolerable,” a letter to the DOJ states.“These unauthorized and inaccurate leaks from within the FBI, particularly so close to a presidential election, are unprecedented.”

Full letter below: