Sen. Dianne Feinstein, D-Calif., on Tuesday released the full transcript from Fusion GPS co-founder Glenn Simpson's testimony before the Senate Judiciary Committee regarding Russian interference in the 2016 presidential election.

"The innuendo and misinformation circulating about the transcript are part of a deeply troubling effort to undermine the investigation into potential collusion and obstruction of justice," Feinstein said in a statement. "The only way to set the record straight is to make the transcript public."

The move follows a decision by Republicans Chuck Grassley, who is chairman of the Senate Judiciary Committee, and Lindsey Graham to issue a criminal referral last week against Christopher Steele, the former British spy who authored the largely unverified "Trump dossier."

Joshua Levy, a lawyer for Fusion GPS, testified that someone died as a result of the dossier. Levy did not name the individual, according to the transcript.

The release of the transcript, Feinstein said, was supported by committee Democrats.