Fox News political editor Chris Stirewalt said former Trump campaign manager Paul Manafort's conduct that led to a judge revoking his bail is "just as rotten as you can imagine."

Manafort appeared at the Barrett Prettyman Federal Courthouse in Downtown Washington Friday, where a judge told him he tampered with witnesses.

As reported:

Washington, D.C., Federal District Judge Amy Berman Jackson sent the onetime power player to jail pending trial moments after he pleaded not guilty to the charges, brought against him and his associate, Konstantin Kilimnik of Moscow.

Mueller accused the pair of obstructing justice in the investigation into Russian meddling and potential collusion with Trump campaign associates in 2016.

Manafort's trial before Jackson is expected to take place in September. He is also facing charges brought by Mueller in another federal court, and will appear for that case in August.

The filings last week, signed by Mueller, alleged that Manafort and Kilimnik “knowingly and intentionally attempted to corruptly persuade another person…with intent to influence, delay, and prevent the testimony of any person in an official proceeding.”

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Stirewalt said it is not unprecedented to put a "white collar [alleged] criminal in jail," versus one who may cause bodily harm to others, but that it is not a usual occurrence.

"[Manafort] is a guy who is tampering with witnesses in his own case," he said, adding that the former partner at Black, Manafort & Stone embodies "sleaze, corruption and the worst kind of stuff."

President Donald Trump said he is not strongly connected to Manafort, saying he worked for the campaign for "a very short period of time."

Trump said Manafort, a Washington consultant for decades, worked much more intimately with President Ronald Reagan, Sen. John McCain (R-Ariz.) and former Sen. Robert Dole (R-Kan.)

Watch more above from "Outnumbered."

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