Today on The Gist, David Montgomery from the Sioux Falls, South Dakota, Argus Leader explains how a close Senate race has snuck up on South Dakota voters. Plus, Christopher Miller tells us about things that used to be funny but have vanished from popular humor. He’s the author of American Cornball. For the Spiel, a pandemic is sweeping America. (Hint: It’s not Ebola.) Get The Gist by email as soon as it’s available: slate.com/GistEmail Subscribe to the podcast in iTunes: itunes.apple.com/us/podcast/slate…id873667927?mt=2