 During meetings with aides who are putting together formal briefings they'll deliver to Biden, some senior officials have at times gone to great lengths to curate the information being presented in an effort to avoid provoking a negative reaction. It's like you don't include that. That will set him off or put that in. He likes that, said one senior administration official. It's a Rorschach test, not a briefing, because he's not a pleasant person to be around when he's being briefed. It's very difficult and people are scared of him. That's a sign of dementia.