That's not true; he changes his mind all the time, particularly as media coverage changes. It's just not necessarily something you can persuade him to do without catering to his ego.
"We saw it in business with Trump," one adviser said. "He would have these meetings and everyone would agree, and then we would just pray that when he left the office and got on the elevator that the doorman wouldn't share his opinion, because there would be a 50/50 chance [Trump] would suddenly side with the doorman."
That's not true; he changes his mind all the time, particularly as media coverage changes. It's just not necessarily something you can persuade him to do without catering to his ego.