List of U.S. Swing States - Origin of Swing States

Origin of Swing States

In U.S. presidential elections, the Electoral College system allows each state to decide the method by which it awards electors. Since in most states the legislature wants to increase the voting power of the majority, all states except Maine and Nebraska (explained below) use a winner-take-all system where the candidate who wins the most popular votes in a state wins all of that state's electoral votes. This way, presidential candidates have no incentive to spend time or resources in states they are likely to win or lose by a sizable margin.

Since a national campaign is interested in electoral votes, rather than the national popular vote, it tends to ignore states that it believes it will win easily; since it will win these without significant campaigning, any effort put into them is essentially wasted. A similar logic dictates that the campaign avoid putting any effort into states that it knows it will lose.

For instance, a Republican candidate (the more conservative of the two major parties) can expect to easily win many of the Southern states like Texas, Mississippi, Alabama, and South Carolina, which historically have a very conservative culture, very religious, and a more recent history of voting for Republican candidates. They could also expect to win states like Wyoming, Utah, Idaho and Nebraska, which share conservative values but have had a longer history of voting Republican. Similarly, the same candidate can expect to lose California, Vermont, Massachusetts, Oregon, Hawaii, Connecticut, Illinois, Rhode Island, and New York, traditionally liberal states, no matter how much campaigning is done in those states. The only states which the campaign would target to spend time, money, and energy in are those that could be won by either candidate. These are the swing states.

In Maine and Nebraska, the apportionment of electoral votes parallels that for Senators and Congressional Representatives. Two electoral votes go to the person who wins a plurality in the state, and a candidate gets one additional electoral vote for each Congressional District in which they receive a plurality. Both of these states have relatively few electoral votes (for the 2004 election, Maine had 4 and Nebraska had 5; the minimum is 3) and are usually not considered swing states (Maine is generally considered a Democratic-leaning state while Nebraska is typically thought to be a Republican state). Despite their different rules, only once has either state split its electoral votes: Nebraska in 2008, giving 4 votes to Republican John McCain and one to Democrat Barack Obama (who swept Maine).

In the 2004 elections, Colorado voted on Amendment 36, an initiative which would have allocated the state's electoral votes in proportion to the popular vote in the state. The initiative would have taken effect immediately, applying to the selection of electors in the same election. However, the initiative failed and Colorado remains under the winner-take-all system that is present in 48 states.