Shortly after bragging about "acing" his cognitive exam more than 4 years ago, Donald Trump began impersonating a duck while talking about fracking at a rally in Pennsylvania over the weekend. The convicted felon former president repeated the phrase "frack, frack, frack" multiple times, saying that it sounded like a duck, which he seemed to enjoy way more than he should have. The man's brain has completely turned into mush.Also, the grift never stops with Donald Trump. Just hours after his wi...