Changing the scale and changing the result: Evaluating the impact of an electoral reform on the 2000 and 2004 US Presidential elections

The ‘perverse’ outcome of the 2000 US Presidential election, whereby the candidate with most ‘popular votes’ was defeated in the Electoral College, has stimulated renewed interest in electoral reform in the United States. One option discussed is the Maine/Nebraska system (sometimes termed the Mundt–Coudert scheme) which changes the geography of the contest somewhat. One-fifth of the Electoral College votes are retained for the winner of the popular vote contest in each of the States, with the remainder being allocated to candidates who win in each of the separate Congressional District contests. This paper evaluates the likely outcome of the 2000 and 2004 Electoral College contests if this scheme had been in place. It shows that the 2000 result would not have been changed, but the 2004 outcome would have been even more favourable to the Republican candidate, because his vote total was much more efficiently distributed than his opponent's.