This is a basic lying tactic he has used his entire life. Just keep repeating a complete and obvious lie, until people’s brains break it down into “yeah that sounds right, I’ve heard that before”. At that point, it’s as useful as actually being true. He is the richest, most successful, winningest winner that ever won. Everyone except him is wrong, corrupt or a loo-zah. There’s nothing magical about this demented toddler’s mindset.