Also from Mencken —
…it is impossible to talk anything resembling discretion or judgment to a colored woman. They are all essentially child-like, and even hard experience does not teach them anything.
Dude is not exactly a font of wisdom. I feel like I only ever see him quoted before some libertarian pretends they're about to think for themself.
*Presidential Medal of Freedom
In answer to your question, though, she's receiving it because democracy, at least for one political party, is entirely for sale.