A big tip of the hat to John Tierney for his column today. It’s hidden behind a TimesSelect wall, but here’s a selection:

These federal intrusions are especially scorned by independent voters in the Western states where Republicans have been losing ground, like Colorado, Nevada, Arizona and Montana. Western Democrats have been siphoning off libertarian voters by moderating their liberal views on issues like gun control, but Republicans have been driving libertarians away with their wars on vice and their jeremiads against gay marriage (and their attempt to regulate that from Washington, too).

Libertarian voters tend to get ignored by political strategists because they’re not easy to categorize or organize. They don’t congregate in churches or union halls; they don’t unite to push political agendas. Many don’t even call themselves libertarians, although they qualify because of their social liberalism and economic conservatism: they want the government out of their bedrooms as well as their wallets.

They distrust moral busybodies of both parties, and they may well be the most important bloc of swing voters this election, as David Boaz and David Kirby conclude in a new study for the Cato Institute. Analyzing a variety of voter surveys, they estimate that libertarians make up about 15 percent of voters — a bloc roughly comparable in size to liberals and to conservative Christians, and far bigger than blocs like Nascar dads or soccer moms.

Find the study here.