With the nominating phase of the congressional campaign just about over and the midterm elections less than four months away, you are going to see an increasing number of predictions, prognostications and more than a few statistically-driven forecast models purporting to tell us how the Republicans and Democrats are going to do in the House and Senate. Accordingly, I thought it might be useful to present a short primer on the types of forecasts you are likely to see, so that you can makes sense of the predictions. CONT.
Matthew Dickinson, Middlebury College