WASHINGTON – Documents unveiled by Washington watchdog Judicial Watch reveal FBI Deputy Director Andrew McCabe did not recuse himself from the investigation into Hillary Clinton's unauthorized and unsecure private email server until days before November's election.

Democrats, however, were heavily involved in contributing campaign funds to his wife's campaign at the time.

Judicial Watch obtained the documents through a Freedom of Information Act lawsuit against the FBI.

The government watchdog group filed the suit to obtain records related to McCabe's involvement with the Virginia Senate campaign of his wife, Jill McCabe.

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Through much of the probe of Clinton's server, McCabe was the assistant director in charge of the bureau's Washington field office and managed resources for the investigation.

He became deputy director while the investigation was still underway, overseeing the entire investigation.

The FBI began investigating Clinton for using a non-government email server in July 2015, shortly after her stunt became public knowledge.

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Days after the Clinton email scandal gained national attention, McCabe's wife was approached by longtime Clinton ally Virginia Gov. Terry McAuliffe about running for office, with an offer of some $700,000 in campaign donations.

And Jill McCabe later received $292,500 from another Democratic PAC in her unsuccessful bid for office.

Judicial Watch has released a document titled "Protocol regarding Potential Conflicts of Interest," revealing Andrew McCabe inquired about how his wife's candidacy might affect his work days before she announced her electoral bid and to what extent his participation in her campaign would become a conflict of interest.

Despite McAuliffe's ties to Clinton, the FBI did not initially recommend any limitations on his involvement in the Clinton investigation, according to Judicial Watch.

However, an FBI internal memo titled "Overview of Deputy Director McCabe's Recusal Related To Dr. McCabe's Campaign for Political Office" outlined McCabe's potential conflicts, including the Clinton investigation.

The same document reveals FBI officials directed McCabe to have no involvement in his wife's campaign and that he was prohibited from attending events or supporting the campaign in any capacity.

Nonetheless, McCabe was photographed at a campaign event.

An image appeared of McCabe standing alongside his wife wearing a T-shirt supporting his wife's campaign during a public event and holding a sign that read, "I am voting for Jill because she is the best wife ever." It was on social media, days before the election.

That drew questions from the Office of U.S. Special Counsel.

McAuliffe's office released documents to Circa under the Freedom of Information Act showing McCabe attended a meeting with his wife and McAuliffe on a Saturday in March 2015.

"The FBI is compromised. Mr. McCabe should have been nowhere near the Hillary Clinton investigations," Judicial Watch President Tom Fitton said in a statement. "That he saw fit to recuse himself only days before the election further demonstrates the FBI's Clinton email investigation was a sham. No wonder it took a year and a federal lawsuit to get these records. It is well past time for the Justice Department to reopen the Clinton email investigation."

McCabe also played a key role in the current investigation into alleged collusion between Russia and Donald Trump's 2016 election campaign.

He became the FBI's acting director after James Comey was dismissed by President Trump, and he served in that role until Aug. 2.

Republicans on the House Intelligence Committee reportedly plan to subpoena McCabe next week unless he agrees to appear before their panel.

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