Article continues below advertisementDonald Trump insulted J.D. Vance at the Tuesday, December 2, Cabinet meeting despite the vice president sitting directly across from him.After the POTUS was asked about a scandal in Minnesota, he referred to Kamala Harris' VP candidate, Tim Walz, the governor of the state.Article continues below advertisementDonald Trump Disses J.D. VanceSource: megaJ.D. Vance sat across the table from Donald Trump when the president labeled him 'incompetent.'"Look, I think the man's a grossly incompetent man. I thought that from the day I watched J.D.