Editor’s note: John P. Avlon is the author of "Independent Nation: How Centrists Can Change American Politics" and writes a weekly column for The Daily Beast. Previously, he served as chief speechwriter for New York City Mayor Rudy Giuliani and was a columnist and associate editor for The New York Sun. [cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/01/07/wingnuts.malloy.quist.art.jpg caption="On … Continue reading Avlon: Partisan politics ought to end at the water’s edge