The defeat of House Majority Leader Eric Cantor on June 10, 2014, was the most stunning upset in modern political history. Shown by his own polling to be leading by 34 points in the Virginia district he'd represented fourteen years, outspending little-known primary opponent Dave Brat 40-1, Cantor - widely presumed to be the next Speaker - was crushed by eleven points. Typically, the elite media had totally missed the story, buying into the narrative...