"One administration official described Trump’s behavior Wednesday as that of 'a total monster,' while another said the situation was 'insane' and 'beyond the pale.'"

"Fearful that Trump could take actions resulting in further violence and death if he remains in office even for a few days, senior administration officials were discussing Wednesday night whether the Cabinet might invoke the 25th Amendment of the U.S. Constitution to force him out, said a person involved in the conversations.... Aides mortified by their boss’s conduct said they were weighing whether to resign or to stay in office to help ensure the transition to the Biden administration.... Considerable internal anger was directed toward chief of staff Mark Meadows, according to four aides, both because of what many view as his incompetence in managing the White House and his willingness to prop Trump up while indulging his false election fraud claims. People who interacted with Trump on Wednesday said they found him in a fragile and volatile state.... As rioters broke through police barricades and occupied the Capitol, paralyzing the business of Congress, aides said Trump resisted entreaties from some of his advisers to condemn the marauders and refused to be reasoned with. 'He kept saying: "The vast majority of them are peaceful. What about the riots this summer? What about the other side? No one cared when they were rioting. My people are peaceful. My people aren’t thugs,"' an administration official said. 'He didn’t want to condemn his people.'... A former senior administration official briefed on the president’s private conversations said: “The thing he was most upset about and couldn’t get over all day was the Pence betrayal. … All day, it was a theme of, ‘I made this guy, I saved him from a political death, and here he stabbed me in the back.'" 

"Aides weigh resignations, removal options as Trump rages against perceived betrayals" (WaPo).