Sen. Chris Murphy Christopher (Chris) Scott MurphyDemocratic senator calls for 'more flexible' medical supply chain to counter pandemics The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon GOP chairman to release interim report on Biden probe 'in about a week' MORE (D-Conn.) on Wednesday defended Sen. Dianne Feinstein Dianne Emiel FeinsteinMcConnell says Trump nominee to replace Ginsburg will get Senate vote Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence Intensifying natural disasters do little to move needle on climate efforts MORE (D-Calif.) for unilaterally releasing the transcript of an interview with a co-founder of Fusion GPS, which produced a controversial dossier that accused President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE's campaign of colluding with Russia.

"Unfortunately comity has fallen apart on that committee for the time being," Murphy told CNN's Chris Cuomo on "New Day."

"I think it's just another reminder that if we're going to get to the bottom of what happened with respect to the 2016 election, it's going to come through Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's investigation," he continued.

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"I've always been skeptical that the Judiciary Committee or the Intelligence Committee was going to keep Republicans and Democrats together on their own investigations."

The Judiciary Committee interviewed Fusion GPS co-founder Glenn Simpson behind closed doors last August as part of its wider investigation into Russian interference in the 2016 election.

Feinstein, the committee's ranking Democrat, went against the wishes of the panel's chairman, Sen. Chuck Grassley Charles (Chuck) Ernest GrassleySenate Republicans face tough decision on replacing Ginsburg What Senate Republicans have said about election-year Supreme Court vacancies Biden says Ginsburg successor should be picked by candidate who wins on Nov. 3 MORE (R-Iowa), who wanted to wait before releasing the transcript.

"It’s totally confounding that Sen. Feinstein would unilaterally release a transcript of a witness interview in the middle of an ongoing investigation — a witness that Feinstein herself subpoenaed last year for lack of cooperation," Grassley's press secretary said in a statement.

Murphy on Wednesday said he thinks Feinstein made the right decision.

"Remember, the Republicans on that committee didn't consult with her with respect to their referral to the Department of Justice on Fusion GPS," Murphy said, referring to Grassley and Sen. Lindsey Graham Lindsey Olin GrahamSenate Republicans face tough decision on replacing Ginsburg Democratic senator calls for eliminating filibuster, expanding Supreme Court if GOP fills vacancy What Senate Republicans have said about election-year Supreme Court vacancies MORE's (R-S.C.) decision to ask Justice to look into criminal charges against the dossier's author.