Donald Trump once again attacked his former lawyer Michael Cohen on Saturday, potentially testing the limits of a gag order that bars him from making public statements about witnesses concerning their testimony in his upcoming criminal trial in New York.

In a post on his Truth Social platform, the former president wrote, “Has disgraced attorney and felon Michael Cohen been prosecuted for LYING? Only TRUMP people get prosecuted by this Judge and these thugs!”

Cohen is expected to be a key witness for the prosecution at the trial, which is scheduled to begin with jury selection on Monday and will be the first criminal trial ever of a former American president.