Trump's ghostwriter who spent 18 months with him: "Lying is second nature to him. He lied strategically. He had a complete lack of conscience about it."

This was 40 years ago so I’m willing to believe he was able to strategise. It just degenerated into mad ramblings as time went on.

At a previous work place a second line manager was like this. He would tell people one thing and them in meetings tell his superior something else, even with the same people present. It got to a point that people avoided meetings with the guy without someone else as witness and my manager got the habit to document the meetings and forward to all parts as an email to have a paper trail. That paper trail came in hand at least a couple of times. I didn't deal directly with the guy but people say it was exhausting. Finally the company ler him go during a season with a lot of people quiting after one too many people cited him as a reason for leave the company.