Michael Cohen said that the former president may have kept classified documents at Mar-a-Lago to blackmail the DOJ into not indicting him.
The Washington Post reported on Tuesday that FBI agents found classified documents about a foreign government's nuclear-defense capabilities during their search of Donald Trump's Florida estate.
The report didn't say which foreign government the documents were about.
"This is all about power for Donald Trump," the lawyer said when asked about why the documents were kept in Mar-a-Lago.
If you indict me or members of my family, I have nuclear secrets that I have instructed some of my followers to keep, that's all this is about.
David Lauftmann, a former senior DOJ counterintelligence official, and Bill Barr, who served as US attorney general under Trump, all said that they expect Trump to be indicted soon.
The representatives for Trump did not reply immediately.
The Espionage Act was one of three federal laws being investigated by the Mar-a-Lago search team.
Cohen has said before that Trump was keeping government documents for blackmail.
He told MSNBC last month that the former president was likely using the secret documents that he took to Mar-a-Lago to get out of jail.
If you put me in jail, I'll turn around and say I'm going after you. Cohen said that he would have his loyal supporters who he didn't know who had copies of information.