I don't know if it's 6D chess but it probably was more of a chaos monkey/bury the lead strategy that doesn't take much brain power (i.e. flood the zone).

My hot take is Matt Gaetz, the Greenland purchase and the Canada as the 51st state were all distraction techniques to get the other nominees through.

Alas the person who got the AG slot after Gaetz dropped is just as willing to be a corrupt official personally loyal to Trump. Just without Gaetz' baggage.

I find the idea of Trump playing "3D/4D/5D/6D chess" frankly hilarious. Hell, the man probably can't even play 2D chess. I honestly doubt he even has the patience to learn the rules. He's the kind of person who would get checkmated in 4 moves, flip the opponent's king over, claim victory, and walk away bragging about his genius victory.