The lengthy transcript was released over the objections of Republicans, who have been sharply critical of Simpson's firm, Fusion GPS. "The only way to set the record straight is to make the transcript public", she said.
As reported last night, the file has been central to these investigations, with Democrats claiming it to be a roadmap to alleged collusion and corruption by Trump whereas Republicans and Trump's inner circle insisting that it is filled with unverified claims that the FBI may have used to improperly to secure a warrant to spy on Trump's campaign and transition.
Simpson, a former Wall Street Journal reporter, described his company's work much differently in his August 22 testimony to the Judiciary Committee.
President Donald Trump on Wednesday was critical of "sneaky" Feinstein.
However, the research became more focused on Trump's ties to Russian Federation when Fusion GPS contracted with a former British spy, Christopher Steele, to probe deeper. They, in turn, claimed Russian officials had aided Trump for years, and had gathered compromising information on him during a 2013 visit to Moscow that they could use as blackmail. As concerns mounted about Russia's attempts to interfere with the election, Steele brought some of his research to the Federal Bureau of Investigation.
They also said Simpson's testimony had been selectively leaked and called for release of the full transcripts of his interview.
Simpson said Steele was concerned "whether or not there was blackmail going on, whether a political candidate was being blackmailed".
"I think it was the right move", Murphy told CNN "New Day" host Chris Cuomo, who challenged the Connecticut Democrat's answer, given that Feinstein didn't consult with Judiciary Committee chairman Sen. He says she released the testimony "totally without authorization". "The American people deserve the opportunity to see what he said and judge for themselves", Feinstein, the top Democrat on the committee, said in a statement.
More dramatically, Grassley and Sen. Simpson's interview pertained to the Steele Dossier on Trump that was compiled by his firm during the 2016 campaign.
Steele briefed an Federal Bureau of Investigation agent in July 2016. The diplomat later reported the conversation to the Federal Bureau of Investigation.
The special counsel's team of investigators has expressed interest in speaking with Trump, but no details have been worked out.