Rep. Eric Swalwell Eric Michael SwalwellSwalwell calls for creation of presidential crimes commission to investigate Trump when he leaves office 'This already exists': Democrats seize on potential Trump executive order on preexisting conditions Swalwell: Barr has taken Michael Cohen's job as Trump's fixer MORE (D-Calif.) slammed the now-shuttered Russia investigation conducted by the House Intelligence Committee as a "sham" on Friday and called for the probe to be reopened.

Swalwell, a member of the committee, told CNN's "New Day" that witnesses including Donald Trump Jr. Don John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently MORE and former Trump campaign adviser Roger Stone Roger Jason StoneThe agony of justice Our Constitution is under attack by Attorney General William Barr Justice IG investigating Stone sentencing: report MORE should be called to testify again following an admission from Michael Cohen that President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE directed him to make nondisclosure deals which included six-figure payments to women accusing Trump of affairs.

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"The Republicans shut down our investigation. The best thing they can do for the country is reopen the investigation and bring these witnesses in under subpoena and allow us to look at the documents that third parties hold to test their stories," Swalwell said, adding that the initial probe "was a sham."

"Chairman [Rep. Devin] Nunes from the beginning has sought to protect Donald Trump, not protect the ballot box," he added of the California Republican chairman. "They took out the shovels as soon as this investigation began and buried as much evidence as they could."

Asked whether he believed Cohen lied to his committee last year when the president's former longtime attorney testified on allegations of Russian collusion during a six-hour session, Swalwell said only that Cohen had appeared to not have been "forthcoming."

"[But] the only way to really test that is if he comes back [and testifies]," Swalwell added.

Swalwell's remarks come days after the Senate Intelligence Committee stated that it wants Cohen to reappear before the committee to testify about media reports indicating he knew about the June 2016 Trump Tower meeting between Donald Trump Jr. and a Russian lawyer before it took place.

"We recently re-engaged Mr. Cohen and his team following press reports that suggested he had advanced knowledge of the June 16th meeting between campaign officials and a Russian lawyer at the Trump Tower," the top Democrat and Republican on the panel said in a joint statement this week.

Cohen, who worked for years as President Trump’s personal attorney, pleaded guilty on Tuesday to charges of bank fraud, tax fraud and campaign finance law violations.