Pollster and former Hillary Clinton adviser Mark Penn believes the Michael Cohen plea deal is an attempt to set up President Trump.

Cohen, Trump's longtime attorney, pleaded guilty to eight charges in federal court on Tuesday related to then-candidate Trump's presidential campaign.

Cohen admitted to violating federal campaign finance laws by arranging hush money payments to adult film star Stormy Daniels and former Playboy model Karen McDougal "at the direction" of Trump.

On "Fox & Friends" on Friday, Penn said there is a clear double standard in how Trump and his associates have been investigated compared to Clinton over her private email server and handling of classified information.

"The investigations related to the email were handled with kid gloves, and the investigations related to Trump ... with all-out prosecutorial force of government and deep state might," Penn said.

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He said essentially from day one, Trump's campaign aides and associates have been under extreme scrutiny, with investigators looking for crimes in order to "flip" them against the president.

"Look what happened here with Cohen: They found several million dollars of tax problems with Cohen and they got him to plead to crimes that I don't even think were crimes when it comes to election law," Penn said.

"They're only interested in tying things to Trump."

Watch more from "Fox & Friends" above.

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