My Westchester granny, (everyone calls her "mom,"

, let's us park on her lawn and tells us all about the history of #45.
She says it's all about that 5th Avenue thing. "That downtown realtor," not being accepted into NY High Society no matter how much money and fame he had.
Marriage into those families was the only way to penetrate the snooty uptown elites, and still, he had to taste the sting of rejection.
Mary informs us that this is what really eats him, why the constant angertard outbursts, the bullying, the gaslighting.
It all stems from this one grudge and he will never let it go.