Ex-federal prosecutor and past Fox News contributor Andrew McCarthy on Sunday called out President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE for describing his former personal lawyer as a "rat," saying that the president may want to use a different word.

"Sir, in mobster lingo, a ‘rat’ is a witness who tells prosecutors real incriminating info," McCarthy said on Twitter. "Perhaps a different word?"

McCarthy then added that "searches of lawyer’s offices common enough that DOJ has a procedure for them."

Sir, in mobster lingo, a ‘rat’ is a witness who tells prosecutors real incriminating info. Perhaps a different word? Searches of lawyer’s offices common enough that DOJ has a procedure for them. Here it yielded evidence of crimes you said he should be jailed for. You should stop. https://t.co/EV1txBYrhz — Andy McCarthy (@AndrewCMcCarthy) December 16, 2018

"Here it yielded evidence of crimes you said he should be jailed for. You should stop," he said.

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His comments came only hours after Trump claimed that Michael Cohen, his once longtime personal attorney, became a "rat" after the FBI conducted a search of his office earlier this year.