Andrew McCarthy predicted the defense's closing argument in Paul Manafort's trial will hone in on one person: Rick Gates.

As Fox News reported, Manafort's defense team rested their case Tuesday morning without calling Manafort to testify.

President Trump's former campaign chairman has pleaded not guilty tax evasion and bank fraud charges.

McCarthy, a former federal prosecutor, said the biggest mistake Special Counsel Robert Mueller made was giving Rick Gates a plea deal to cooperate.

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Gates, Manafort's former business partner, testified last week that he and Manafort did in fact commit bank and tax fraud.

"The plea deal that [Mueller] gave to Gates is shameful," McCarthy said Tuesday on "Outnumbered."

"Basically they charged him with over 100 years of felony charges, and then the next day they plead him out to two minor charges."

He explained that Manafort's lawyers will ask why their client is looking at the prospect of spending the rest of his life in prison, while Gates may serve little or no prison time for the same offenses.

The trial's closing arguments are set to begin Wednesday morning.

Watch the segment above.

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