One of my favorite books on American history and the history of my own family.....
Born Fighting: How the Scots-Irish Shaped America
http://www.ashbrook.org/publicat/oped/owens/04/webb.html
These are the “red state” voters. They are family-oriented, take morality seriously, go to church, join the US military, support America’s wars, and listen to country music.
From the book Born Fighting: How the Scots-Irish Shaped America
More than 27 million Americans today can trace their lineage to the Scots, whose bloodline was stained by centuries of continuous warfare along the border between England and Scotland, and later in the bitter settlements of England’s Ulster Plantation in Northern Ireland. Between 250,000 and 400,000 Scots-Irish migrated to America in the eighteenth century, traveling in groups of families and bringing with them not only long experience as rebels and outcasts but also unparalleled skills as frontiersmen and guerrilla fighters. Their cultural identity reflected acute individualism, dislike of aristocracy and a military tradition, and, over time, the Scots-Irish defined the attitudes and values of the military, of working class America, and even of the peculiarly populist form of American democracy itself.