inds They're often responsible for upsets: Abbr Swing voters: Abbr Unaffiliated voters: Abbr Some voters: Abbr Unaffiliated voters (abbr.) Certain voters: Abbr Some candidates (abbr.) Sen. King and Sen. Sanders Pol. middle-of-the-roaders Not Dems. or Reps They're often responsible for upsets: Abbr. Some candidates: Abbr. Middle-of-the-roaders: Abbr. They're unaffiliated: Abbr. Polit. wild cards Neither Dems. nor Reps. Hill minority: Abbr. Not Dems. or Reps. Some voters: Abbr. Certain pols