The Jan. 24 email to the White House from Bolton’s lawyer, Charles Cooper, was in response to a letter from the National Security Council a day earlier warning that the manuscript contained “significant amounts” of classified material that could not be disclosed publicly.

“We do not believe that any of that information could reasonably be considered classified,” Cooper responded, according to a copy of the email he released Wednesday.

He added that Bolton is “preparing” for the possibility he could be called to testify in the ongoing Senate trial, writing that it was “imperative that we have the results of your review of that chapter as soon as possible.”

Cooper said in a statement Wednesday that he has not received a response to his “urgent request.”