Just like Obama, AOC, Macron
I'm convinced that more and more politicians now are simply actors and hired front-men. They are developed, groomed and promoted by wealthy, powerful and organized political groups behind the scenes. they don't need to be smart, only presentable. The marketing teams and media will do the rest.
It’s probably a natural consequence of politics in the age of television ... and it has accelerated exponentially as digital video and web streaming have started to replace the traditional TV model.