You’ve probably noticed cable-news networks and others citing election “results” from exit polls — for example, “voters over age 60 are supporting Walker X percent to Y percent” or somesuch. We recommend taking these numbers with a big grain of salt. At this point, exit polls are just regular old polls, subject to the same errors that preelection polls are. They don’t gain any special powers until after the election, when they are reweighted to match the final election results. That means the numbers you’re seeing right now will almost certainly change.
