Trump just moved it to another level.
He is the In-group and everyone else is the Out-group all depending on how big of a shit he took in his diaper, how sweet the diet coke in his cup is, who the last he spoke to pointed him towards commenting at, and how many uppers he shoved down his throat with his big Mac.
Maybe have the UCP leaders celebrate CO2 by crowding into a sealed room pumped full of this harmless non pollutant.