.WHEN DONALD TRUMP completed words "Springfield" thirty three moments in to the American presidential debate on September 10th, David Muir, the co-moderator, was prepared. In that small Ohio community, Mr Trump proclaimed, illegal immigrants are "eating the canines, they are actually consuming the cats, they're eating the pets of individuals who reside there". Mr Muir without delay replied that, depending on to Springfield's city manager, there were actually no trustworthy records of pet-eating. The past head of state's case have to possess struck many viewers as strange. But great deals of Mr Trump's fans were primed for it: the allegation possessed been moving around in conservative circles on social networks, boosted by Elon Musk, the owner of X. How did the town happened at the facility of a right-wing conspiracy concept?