CNN host Chris Cuomo slammed a former Trump campaign aide Wednesday over claims about the controversial "Steele dossier" about 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 and Russia.

Michael Caputo, a former Trump campaign adviser, criticized the dossier, saying that retired MI6 agent Christopher Steele’s research should not be treated as “intelligence.”

Cuomo pointed out that the Trump campaign engaged in opposition research, to which Caputo said, “we don’t call it ‘intelligence’ and we don’t go to the FBI with it.”

“That’s a problem the Trump team seems to have,” Cuomo responded. “When you get information about something that could be proof of a crime or criminal intention, specifically by a foreign and inimical entity, you should go to the FBI.”

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The heated exchange comes the day after 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.) unilaterally published the full testimony of Glenn Simpson, co-founder of Fusion GPS, the research firm that hired Steele to investigate Trump.

In his testimony, Simpson asserted that Steele reached out to to the FBI of his own accord last year after investigating Trump's trips to Russia. Steele feared then-candidate Trump may be vulnerable to blackmail, according to Simpson.

Cuomo criticized Caputo over the 2016 meeting between 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 a Russian lawyer, saying it was “not good instincts” for the campaign not to alert the FBI when those Russian nationals said they had “dirt” on Hillary Clinton Hillary Diane Rodham ClintonWhat Senate Republicans have said about election-year Supreme Court vacancies Bipartisan praise pours in after Ginsburg's death Trump carries on with rally, unaware of Ginsburg's death MORE.

“[Steele] went to the FBI because he thought it mattered” Cuomo said. “That seems to be a … distinction between him and the Trump team. You guys get approached by the Russians, you don’t say anything. You get offered dirt on Hillary Clinton, you take the meeting instead of telling the FBI. Not good instincts.”

But Caputo questioned the credibility of the dossier and of Steele’s sources, building on GOP accusations that Steele paid sources for salacious information about Trump and that the claims have not been corroborated.