https://www.washingtonpost.com/politics/secret-fbi-source-for-russia-investigati...Secret FBI source for Russia investigation met with three Trump advisers during campaign

Carter Page, a former foreign-policy adviser to Donald Trump’s presidential campaign, had numerous encounters with an FBI informant in 2016. (Pavel Golovkin/AP)
By Robert Costa, Carol D. Leonnig, Tom Hamburger and Devlin Barrett May 18 at 9:39 PM Email the author
In mid-July 2016, a retired American professor approached an adviser to Donald Trump’s presidential campaign at a symposium about the White House race held at a British university.
The professor took the opportunity to strike up a conversation with Carter Page, whom Trump had named a few months earlier as a foreign policy adviser.
But the professor was more than an academic interested in American politics — he was a longtime U.S. intelligence source. And, at some point in 2016, he began working as a secret informant for the FBI as it investigated Russia’s interference in the campaign, according to people familiar with his activities.
The role played by the source is now at the center of a battle that has pitted President Trump against his own Justice Department and fueled the president’s attacks on the special counsel’s investigation. In a Thursday tweet, he called the probe “a disgusting, illegal and unwarranted Witch Hunt.”
In recent days, Trump and his allies have escalated their claims that the FBI source improperly spied on the campaign.
“Reports are there was indeed at least one FBI representative implanted, for political purposes, into my campaign for president,” he tweeted Friday. “It took place very early on, and long before the phony Russia Hoax became a ‘hot’ Fake News story. If true — all time biggest political scandal!”
There is no evidence to suggest someone was planted with the campaign. The source in question engaged in a months-long pattern of seeking out and meeting three different Trump campaign officials.
The Washington Post — after speaking with people familiar with his role — has confirmed the identity of the FBI source who assisted the investigation, but is not reporting his name following warnings from U.S. intelligence officials that exposing him could endanger him or his contacts.
The source declined multiple requests for comment. An FBI spokeswoman declined to comment.
Page was one of three Trump advisers whom the FBI informant contacted in the summer and fall of 2016 for brief talks and meetings that largely centered on foreign policy, according to people familiar with the encounters.
“There has been some speculation that he might have tried to reel me in,” Page, who had numerous encounters with the informant, told The Post in an interview. “At the time, I never had any such impression.”
In late summer, the professor met with Trump campaign co-chairman Sam Clovis for coffee in Northern Virginia, offering to provide foreign-policy expertise to the Trump effort. In September, he reached out to George Papadopoulos, an unpaid foreign-policy adviser for the campaign, inviting him to London to work on a research paper.
Many questions about the informant’s role in the Russia investigation remain unanswered. It is unclear how he first became involved in the case, the extent of the information he provided and the actions he took to obtain intelligence for the FBI. It is also unknown whether his July 2016 interaction with Page was brokered by the FBI or another intelligence agency.
The FBI commonly uses sources and informants to gather evidence and its regulations allow for use of informants even before a formal investigation has been opened. In many law enforcement investigations, the use of sources and informants precedes more invasive techniques such as electronic surveillance.
Earlier this month, House Intelligence Committee Chairman Devin Nunes (R-Calif.) issued a subpoena to the Justice Department for all documents related to the FBI informant. Justice Department officials have declined to provide the information, warning that exposing him could have severe consequences.
In a May 2 meeting, senior FBI and national intelligence officials warned the White House that information being sought by Nunes risked the source’s safety and that of his sources, and could damage U.S. relationships with its intelligence partners.
The stakes are so high that the FBI has been working over the past two weeks to mitigate the potential damage if the source’s identity were revealed, according to several people familiar with the matter. The bureau took steps to protect other live investigations that he has worked on and sought to lessen any danger to associates if his identity became known, said these people, who spoke on the condition of anonymity to discuss sensitive intelligence operations.
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