Trump protester Bryan Sanders, center left, is punched by a Trump supporter as he is escorted out of Republican presidential candidate Donald Trump's rally at the Tucson Arena in downtown Tucson, Ariz., Saturday, March 19, 2016. (Mike Christy/Arizona Daily Star via AP) MANDATORY CREDIT
Americana

The Crack-Up:  Donald Trump And The Fourth Great Shattering 

A country that hasn’t had a civil war in more than 150 years, where secessionist movements have caused merriment not concern, now faces divisions so serious, and a civilian arsenal of weapons so huge, that the possibility of national disintegration has become part of mainstream conversation