McCain associate invokes Fifth Amendment on Trump dossier sources: report
© Getty Images

An associate of Sen. John McCainJohn Sidney McCainVirginia race looms as dark cloud over Biden's agenda  Sinema's no Manchin, no McCain and no maverick Progressives say go big and make life hard for GOP MORE (R-Ariz.) invoked the Fifth Amendment in order to not testify before the House Intelligence Committee on a dossier of opposition research that claims ties between President TrumpDonald TrumpRobert Gates says 'extreme polarization' is the greatest threat to US democracy Cassidy says he won't vote for Trump if he runs in 2024 Schiff says holding Bannon in criminal contempt 'a way of getting people's attention' MORE and Russia, according to Fox News.

The committee originally issued a subpoena for David Kramer — a former State Department official and current senior director of the nonprofit McCain Institute — in December. 

ADVERTISEMENT

Committee Chairman Devin NunesDevin Gerald NunesSunday shows preview: Pelosi announces date for infrastructure vote; administration defends immigration policies LIVE COVERAGE: Ways and Means begins Day 2 on .5T package Biden faces unfinished mission of evacuating Americans MORE (R-Calif.) had wanted to speak with Kramer about his visit to London in November 2016, during which he met with the author of the dossier, former British intelligence officer Christopher Steele. According to court filings, he met with Steele at McCain's request, to view “the pre-election memoranda on a confidential basis."

Kramer then traveled back to the U.S. and gave copies of the memos to McCain, who in turn handed the documents over to the FBI. 

The committee interviewed Kramer last month prior to issuing a subpoena for him. 

The dossier was contracted out to opposition research firm Fusion GPS and funded in part by Hillary ClintonHillary Diane Rodham ClintonTrump criticizes Justice for restoring McCabe's benefits Biden sends 'best wishes' to Clinton following hospitalization The Hill's Morning Report - Presented by Altria - Jan. 6 panel flexes its muscle MORE's campaign. 

President Trump has called the document "fake."

Republicans want to know if the document was used as the basis for a surveillance warrant on any members of the Trump campaign.

However, Democrats want to know if the salacious claims about Trump in the dossier, which connect him to Russia, are true.