The U.S. Justice Department official in charge of of the probe into Hillary Clinton's and Huma Abedin's emails sent Clinton campaign chairman John Podesta a 'heads up' about a congressional hearing into her secret server last year.

Podesta responded by looping senior campaign staff into the conversation and said the hearing would provide 'additional chances for mischief.'

'There is a HJC [House Judiciary Committee] oversight hearing today,' Peter Kadzik wrote in 2015, 'where the head of our Civil Division will testify.'

'Likely to get questions on State Department emails. Another filing in the FOIA [Freedom Of Information Act] case went in last night or will go in this am that indicates it will be awhile (2016) before the State Department posts the emails.'

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Hillary Clinton's campaign chairman John Podesta (left) once boasted that Peter Kadzik (right), Podesta's attorney during the Lewinsky years, kept him out of jail

This email from Peter Kadzik to John Podesta started a new WikiLeaks firestorm, and Trump wasted no time in weighing in

Donald Trump clobbered John Podesta on Wednesday in Miami over a newly discovered connection with Justice Department official Peter Kadzik

Kadzik, a long-time friend of Podesta sent it from his private email address even though it was clearly about his government business and concerned information he had obtained as a result of his official role.

It is the latest proof of close links between him and Podesta. On Tuesday an email emerged in which Podesta boasted that Kadzik had 'kept me out of jail'.

The two socialized together and their links went back to the Lewinsky scandal, when Podesta was Bill Clinton's chief of staff.

The anti-privacy group WikiLeaks released the email chain, and Donald Trump wasted no time in reacting.

Less than a day after delivering a disciplined, on-message speech in Wisconsin that seemed to mark a new approach to his final week of campaigning, Trump launched into a tirade Wednesday about the Obama administration official.

'One of the top Department of Justice officials involved in the email investigation, Assistant Attorney General Peter Kadzik, is a close associate of John Podesta,' Trump said in Miami, referring to Clinton's campaign chairman.

'The two met for dinner after Clinton testified about Benghazi, and Podesta ... described him as the man who kept him, Podesta, "out of jail."

'Kadzik is also the one who led the effort to confirm Attorney General Lorretta Lynch. Now today in a newly released email ... we learn Kadzik was feeding information about the investigation to the Clinton campaign, and Kadzik said: "It will be awhile before the State Department posts the emails".'

'Podesta forwarded the emails to Clinton's top staff and said: "Additional chances for mischief." These are the people who want to run our country, folks!'

Kadzik represented Podesta during as then-President Bill Clinton's Monica Lewinsky scandal unfolded in 1998, as independent counsel Kenneth Starr probed Podesta's role in getting Clinton's mistress a job at the United Nations.

Peter Kadzik's name came up because he's the Justice Department official charged with keeping Congress in the loop on the Hillary Clinton (pictured) email probe

Trump is just 6 days away from the political test of a lifetime and he's barnstorming Florida on Wednesday and Thursday

'Fantastic lawyer. Kept me out of jail,' Podesta – who was Clinton's White House chief of staff at the time – emailed Obama aide Cassandra Butts in September 2008.

'The spread of political agendas into the Justice Department – there's never been anything like this in our country's history,' Trump told about 4,200 supporters on Wednesday afternoon.

'There are FBI inquiries probing just about all the people in Hillary Clinton's inner circle ... she wants to blame everyone else for her mounting legal troubles, but she really has no one to blame but herself.'

Pointing to the possibility of a lengthy criminal investigation targeting a sitting president, Trump said electing Clinton 'would create an unprecedented and protracted constitutional crisis.'

'Haven't we just been through a lot with the Clintons? ... didn't we just go through this?'

Fox News put two and two together on Tuesday, as Kadzik's name had previously been mentioned during the FBI's investigation of Hillary Clinton's private email server, which she used while serving as secretary of state.

Then, when Congressional leaders wrote to the Justice Department to get more information about FBI head James Comey's blockbuster announcement that the agency was reviving the Clinton email probe, it was Kadzik who replied.

'We assure you that the Department will continue to work closely with the FBI and together, dedicate all necessary resources and take appropriate steps as expeditiously as possible,' Kadzik wrote lawmakers yesterday, according to Fox News.

South Carolina Republican Rep. Trey Gowdy talked about Kadzik's relationship with the Clintons' inner circle on 'Fox & Friends.'

Gowdy admitted that he had 'many differences' with the Justice Department official, but said he wasn't worried about a conflict of interest because of Kadzik's role.

'Peter Kadzik is not a decision maker, he is a messenger,' Gowdy told viewers.

Kadzik, who was confirmed for his Justice Department job in 2014, also was hired as a lobbyist in 2000 for tax-cheat fugitive Marc Rich, who was given a controversial pardon by Bill Clinton on Democrat's final day as president.

The Wikileaks emails also show Kadzik's son reaching out to Podesta for a job at the Clinton campaign.

On May 5, 2015, shortly after Hillary Clinton announced her candidacy, PJ Kadzik wrote to Podesta and expressed his interest in working there.

'I have always aspired to work on a presidential campaign, and have been waiting for some time now for [Hillary] to announce so that I can finally make this aspiration a reality,' Kadzik's son wrote, misspelling the Democratic candidate's name.

Podesta said he would 'check around.'

There's no indication that the younger Kadzik was handed a job.

In another instance, Kadzik and Podesta made dinner plans the day after Hillary Clinton's marathon 11-hour Benghazi testimony.

The two met on Oct. 23, 2015.

They also got together for dinner in January, with Kadzik emailing Podesta, 'We on?'

Podesta replied, 'Yes sorry. 7:30 at our place.'