Alan Dershowitz called out the "double standard" he's seeing from House Judiciary Committee Chairman Jerrold Nadler and other Democrats in advance of the release of Special Counsel Robert Mueller's report.

Attorney General William Barr has promised to release the full Mueller report in the coming days, maintaining his original promise to have the report to Congress, with redactions, by mid-April.

Last month, Mueller transmitted his more than 300-page report to the Justice Department for review. Barr’s summary stated that the special counsel found no evidence of collusion between members of the Trump campaign and the Russians during the 2016 election. Mueller did not come to a conclusion on if Trump committed obstruction of justice, instead leaving it to Barr.

Nadler (D-N.Y.) said on CNN Sunday that the House Judiciary Committee must be given the full, unredacted report and underlying documents, and the committee will decide what is released to the public.

"It may be that Mueller decided not to prosecute for obstruction of justice for various reasons -- that there wasn't proof beyond a reasonable doubt of some things. But there still may have been some proof of some very bad deeds and very bad motives, and we need to see that," Nadler said.

On "America's Newsroom" Monday, Dershowitz, a Harvard Law professor emeritus, noted that Nadler and other Democrats were furious with then-FBI Director James Comey when he cleared Hillary Clinton of criminal wrongdoing in her handling of classified information but described her conduct as "extreme carelessness."

"People like Nadler and others went after him, saying, 'That's not the role of the prosecutor. The role of the prosecutor is to say indict or not indict,'" Dershowitz said. "You don't start expressing opinions about the bad things people did about which there wasn't probable cause or proof beyond a reasonable doubt."

"The double standard is unbelievable," he added. "Now, we want to hear everything about everybody who was in the report, even though they haven't been indicted. Where does that double standard couple from?"

Bill Hemmer responded, "That's Washington, D.C."

Dershowitz agreed and predicted that lawmakers will get access to a version of the Mueller report with minimal redactions, with just grand jury material and other highly classified information removed.

Watch more from Dershowitz above.

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