Washington (CNN) Former Trump campaign chairman Paul Manafort could be headed to Rikers Island, the notorious jail complex in New York City, if prosecutors get their way.

New York prosecutors are seeking to move Manafort from the western Pennsylvania prison where he is serving his federal sentence to Rikers Island for the duration of a state case brought by the Manhattan District Attorney Cy Vance, according to a source familiar with the discussions.

But Manafort's legal team hopes that won't be where he stays as he faces the New York charges. Manafort hasn't been told where he'll be held yet, according to his defense attorney, Todd Blanche. Blanche acknowledged that Rikers was a possible place Manafort could go—and that it's even likely.

It's not yet clear when Manafort will make the move, but it won't be this week, according to a source.

The move would mean he almost certainly would be back in solitary confinement for months, similar to the conditions that Manafort's lawyers said led to a deterioration of his health ahead of his federal trial in Virginia and around his guilty plea on federal charges in Washington DC. He was held for months at the Alexandria Detention Center in Northern Virginia in protective custody, but not solitary confinement, kept away from others except for a few hours a day for his own safety.

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