WASHINGTON—The technology executive who was one of Michael Sussmann’s clients when Sussmann took sketchy claims to the U.S. government was terminated as a confidential informant by the FBI in 2021, prosecutors revealed during Sussmann’s trial on May 17.

Rodney Joffe, the executive, exploited his access to non-public data at multiple technology companies to conduct opposition research into then-presidential candidate Donald Trump ahead of the 2016 election, according to court filings. The firm Joffe worked for, Neustar Security Services, had a Domain Name System (DNS) contract with the office of the presidency in 2016.

Joffe was a confidential informant for the FBI but was terminated “for cause” in 2021, prosecutors said.

Brittain Shaw, one of the prosecutors on Special Counsel John Durham’s team, revealed the information during the questioning of FBI agent David Martin.

The termination was because of how Joffe was involved with the scheme to compile information on the alleged connection between Trump’s business and a Russian bank, Andrew DeFilippis, another prosecutor, said later.

Sean Berkowitz, an attorney for Sussmann, raised concerns during closed session, or without jurors in the room, with remarks about Joffe’s status, asserting they were “prejudicial,” Reuters reported.

U.S. District Court Judge Christopher Cooper, the Obama appointee overseeing the trial, agreed.

Cooper, speaking while jurors weren’t in the room, ordered prosecutors not to discuss the topic again. He said how Joffe handled the information was not part of the trial, and noted the termination did not come for years after the events that are being explored during the trial. In 2016, Joffe was a respected expert, the judge said, echoing the defense.

Joffe was one of Sussmann’s clients, a group that included Hillary Clinton’s campaign, at the time. Joffe has said he was offered a position in the U.S. government if Clinton won the election, which she did not.

According to prosecutors, Joffe not only conducted opposition research on Trump but enlisted researchers from a university, identified as Georgia Institute of Technology, to help him.

Prosecutors said Joffe, Sussmann, and Perkins Coie, the campaign’s legal firm, engaged in a coordinated scheme to distribute the opposition research to the FBI and media outlets in an attempt to influence the 2016 election.

As part of the effort, Sussmann passed sketchy data alleging a link between Trump’s business and a Russian bank to an FBI lawyer in September 2016. Sussmann claimed he was not bringing the information on behalf of a client, which was false, prosecutors say. Sussmann was charged with lying to the FBI.

Steve DeJong, an executive with Neustar, took the stand later Tuesday, telling the court that Joffe was “very well respected.” He said Joffe asked him, as a favor, in August and September of 2016 to look through data logs to find queries for names in political campaigns.

“In retrospect, it was mostly around the Trump campaign,” DeJong said.

DeJong said he was also doing things for Joffe like gathering data on “DNS traffic between utility companies during a hurricane.” Sussmann, to his knowledge, was not “in any way involved” in collecting or analyzing the data. He had never heard of Sussmann before.


John Haughey has been a working journalist since 1978 with an extensive background in local government, state legislatures, and growth and development. A graduate of the University of Wyoming, he is a Navy veteran who fought fires at sea during three deployments aboard USS Constellation. He’s been a reporter for daily newspapers in California, Washington, Wyoming, New York, and Florida; a staff writer for Manhattan-based business trade publications.

Zachary Stieber


Zachary Stieber covers U.S. and world news. He is based in Maryland.

You Might Like
Learn more about RevenueStripe...