Article continues below advertisementKing Charles couldn't contain his laughter after Donald Trump went off course during his speech at the U.K. state dinner on Wednesday, September 17.The president shockingly mocked the names of individuals he greeted during his visit with the royal family, prompting Charles to uncomfortably fix his collar and clench his jaw while chuckling to himself in his chair.Trump was declared a laughing stock by critics after his bizarre monologue turned into an awkward word salad blunder.Article continues below advertisementDonald Trump Becomes Laughing Stock at U.K.