That would be the Republican presidential and vice presidential candidates' false claims that the Haitian immigrants in Springfield, Ohio are 1) illegal, 2) causing mass crime, and 3) eating the townsfolk's pets. All of these have been debunked. That has not stopped bomb threats, school and business closings, and rantings by other right-wing nutjob clingers-on to the same effect, denigrating a full 20% of this Midwestern town.

Several area Republicans have come out pleading for the rhetoric to stop, but because the hate is a feature, not a bug, the VP candidate came out and said: "if I have to make stories up to get the media's attention I will and won't feel bad", and has doubled down on these lies.