mark meadows
(Photo By Jeffery Edwards/Shutterstock)

Immunity may only be half-full for Mark Meadows.

Although Mark Meadows has made a deal to plead guilty so lead prosecutor Jack Smith can have him testify against former President Donald Trump in his federal indictment -- he still has to deal with the Georgia RICO and conspiracy case, according to a legal expert.

"People are suggesting Meadows 'only' got use immunity," said George Washington University law professor Randall Eliason. "Yes, that’s standard federal immunity and almost certainly what he got."

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"The key is not what kind of federal immunity he got, it’s that Smith couldn’t immunize Meadows for GA charges even if he wanted to."

Crucial to Meadows' potential plight in Georgia is whether nor not the Fulton County District Attorney Fani Willis was part of the deal.

"If Georgia DA did not sign on to the immunity deal, then Meadows would still have exposure in GA - and everything he told Jack Smith would be admissible in the GA trial," Eliason added in the thread on his social media.

But he suspects Meadows and his "good lawyer" wouldn't roll the dice and be "immunized" solely in D.C., but left legally vulnerable in Georgia.

"I expect we still have more to learn about Meadows and the deals he may have struck, or how exactly he ended up immunized in DC but indicted in Georgia."

If it's the latter Eliason warns it could be catastrophic.

"But if not, then Meadows has made a big mistake by spilling the beans to the feds with no deal from GA," he wrote.