He’s had this antagonistic attitude and mental impairment toward voters for decades. It got worse with his becoming Veep when his petulant “Do you know who I am” crap began spewing out. Now he simply can’t put a lid on it.
He’s probably scared that when he loses his shield against prosecution for corruption disappears.
Just like with a toddler, if you don’t supervise and discipline them young you end up with a disaster.No one has reined Joe in for years and now it is too late.
The guy is nuts, and that is why he is where he is, so at the Convention the black hatred and robed #PersistantHag can swoop in and “save” the day. The only logical answer.