However, shortly after the transcript was released, "a source close to Fusion GPS" told NBC News that Simpson was referring to an Australian diplomat, who had ed the USA government after a night of "heavy drinking" with former low-level Trump foreign policy campaign adviser George Papadopoulos.
The material wasn't classified, and Feinstein said Wednesday that she didn't do anything illegal. Sheldon Whitehouse and Richard Blumenthal sent a letter to Republican Sen. Feinstein had the ability to release the transcripts as the top Democrat on the committee, and her staff helped conduct the interview with Simpson.
Still, the release was a blow the two lawmakers' earlier attempts at bipartisanship on the committee's Russian Federation investigation.More news: 'I'm a lot more assured in red-ball cricket' - Livingstone
"I gave it to no one except for the director of the Federal Bureau of Investigation". The resulting, largely fictitious "dossier", was then used not only as fodder for the Obama administration's investigation into its political opponents but also to spread unsubstantiated rumors about Trump to the press.
Democrats have charged that the FBI investigations are meant to be a distraction from separate investigations into the Russian meddling and whether Trump's campaign was involved.
Simpson, a former journalist who co-founded Fusion GPS, denied strongly in the interview that the dossier, which contains some salacious allegations, was phony.
Trump also had an exchange with Feinstein over immigration during a meeting with congressional leaders at the White House on Tuesday.More news: US embassy tries to calm Africa's Trump outrage
"Certain Washington politicians choose to fight for foreign countries, but President Trump will always fight for the American people", Shad said.
"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.
Trump has often invoked Feinstein on the collusion issue.
The investigation led by special prosecutor Robert S. Mueller III has so far led to a guilty plea from Trump former national security adviser Michael Flynn and charges against former Trump campaign chairman Paul Manafort.More news: NYC Sues Fossil Fuel Industry over Hidden Costs of Climate Change
Feinstein faces a primary from California state Senate leader Kevin de Leon. Democrats criticized the move, saying they were targeting someone who had reported wrongdoing, not committed it.