'Ever since it delivered a psychological victory by giving an unexpectedly strong finish to Eugene McCarthy against incumbent President Lyndon Johnson in 1968, thereby delivering the first ballot-box expression of Americans’ angst over the Vietnam war, New Hampshire’s primary has been something of a political canary in the nation’s mine shaft...'

This is an excellent piece, from Kathy Kiely, at USA Today, "Trump, Sanders wins 30 years in the making."