Former Trump campaign manager Paul Manafort will not plead guilty, nor will he "roll over" on President Trump, longtime Trump confidant Roger Stone says.

Stone told Miami's local CBS affiliate, CBS4, that he just spoke with Manafort, his former business associate, on Thursday.

“He’s feisty and combative and he’s not going to plead guilty,” Stone told the news outlet. “And he’s not going to roll over on this president.”

Manafort has been charged on multiple counts, including bank fraud and making false statements to investigators, as part of special counsel Robert Mueller's investigation into Russian interference in the 2016 election and possible colllusion between the Trump campaign and the Kremlin. Manafort's consulting work in Ukraine, predating his time in the Trump campaign, is a key part of both of his pending criminal indictments.

He has pleaded not guilty to indictments in federal counts in both Virginia and Washington, D.C.

Meanwhile, Rick Gates, Manafort’s business associate, pleaded guilty in February to conspiring against the U.S. and making inaccurate statements to the U.S. government.