What sets Saudi Crown Prince Mohammed bin Salman, better known as MBS, apart from other autocrats who've risen to power in recent years?

He's consolidated power by "emasculating" his own family, including America's pick to succeed his dad, says Bernard Haykel, a professor at Princeton University and MBS confidante.

The effort "was extremely brutal and messy at times," he tells Ian Bremmer on GZERO World.