The trend is acute in states that are key to next year's presidential race. In the eight swing states that register voters by party, Democrats' registration is down by 800,000 and Republicans' by 350,000. Independents have gained 325,000.
The pattern continues a decades-long trend that has seen a diminution in the power of political parties, giving rise to independents as
Ross Perot and
Ralph Nader and the popularity this year of libertarian Republican Ron Paul.
"The strident voices of both the left and the right have sort of soured people from saying willingly that they belong to one party or the other," says
Doug Lewis, who represents state elections officials. "If both sides call each other scurrilous dogs, then the public believes that both sides are probably scurrilous dogs."
Registered Democrats still dominate the political playing field with more than 42 million voters, compared to 30 million Republicans and 24 million independents. But Democrats have lost the most — 1.7 million, or 3.9%, from 2008.
Democratic registration has fared worse than Republicans in Colorado, Florida, Iowa, Nevada,
New Hampshire,
New Mexico,
North Carolina and Pennsylvania — the eight swing states with party registration. Republican losses are biggest in Nevada, New Hampshire and Pennsylvania.
The decline is due to a variety of factors. People move, people die, people revolt in disgust. Many are stripped from registration rolls by states seeking to remove inactive voters.
By contrast, the number of independents has grown for years and is up more than 400,000 since 2008, or 1.7%. States with big gains: Colorado, Florida, North Carolina — and Arizona, a possible target for President Obama in
2012.
The 2012 winner, says North Carolina elections director
Gary Bartlett, will be "whoever is attractive to the unaffiliated voter."