"He kept saying ... My people are peaceful. My people aren't thugs," the unnamed official said, adding that Trump did not want to say anything about the ransacking.
According to The Post, aides were astonished at Trump's slow and unwilling response to the violence, with one calling the president "total monster."
While aides eventually persuaded Trump to record a video, he reportedly went against their wishes and ad-libbed sections of the speech, continuing to push the false claim that he won the 2020 election.
Aide describes the president as a 'total monster' who refused to act as Congress was stormed
That video has since gotten him temporarily locked out of Twitter.
Twitter said Trump had removed the tweets that led to his suspension from the platform, and the president will get his account back after a 12-hour block.