The House Judiciary Committee on Friday issued a subpoena to Glenn Simpson, the co-founder of Fusion GPS, the opposition research firm that commissioned the Steele dossier on the Trump campaign.

Virginia Rep. Bob Goodlatte, the Judiciary panel’s chairman, announced the subpoena on Twitter.

As part of our joint investigation into decisions made by DOJ in 2016, today I subpoenaed Glenn Simpson to appear for a deposition. — Bob Goodlatte (@RepGoodlatte) September 28, 2018

Simpson, a former Wall Street Journal reporter, will likely face questions over his involvement in the dossier, which was funded by the Democratic National Committee and Clinton campaign. His hiring of Nellie Ohr, the wife of Justice Department official Nellie Ohr, is also a likely topic of discussion.

Simpson and Bruce Ohr met before and after the 2016 election to discuss dossier author Christopher Steele and Fusion GPS’s investigation into President Donald Trump’s possible ties to Russia. Simpson, who has been interviewed by three congressional committees so far, told the House Permanent Select Committee on Intelligence in November that he did not meet with Ohr until after the election.

But Ohr said in a congressional deposition on Aug. 28 that he met with Simpson in August 2016, four months before the election. (RELATED: Bruce Ohr Contradicted Glenn Simpson’s Testimony In A Major Way)

On Thursday, Simpson’s attorney, Josh Levy, told Goodlatte and South Carolina Rep. Trey Gowdy, the chairman of the House Oversight Committee, that Simpson would not appear for an interview, as the committees had requested last week.

“Part and parcel of this concerted effort by the President’s congressional allies has been a campaign of retaliation against the government’s whistleblowers, including our client Mr. Simpson, for their willingness to cooperate with US law enforcement and for their exercise of their constitutional rights to free speech and political activity as American citizens,” Levy wrote.

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