What’s the most dangerous myth in contemporary politics—a fable that damages both major parties while powerfully promoting polarization?

In addition to our era’s most outrageous conspiracy theories (about Hillary Clinton and Bill Gates trafficking children and worshipping Satan, for instance), there’s a pernicious fairy tale that draws widespread support from serious people. It’s frequently endorsed by prominent pundits, distinguished academics and veteran strategists of every ideological perspective….Click here to read the full column at Newsweek.com.