With every state that voted in February, the contours of the 2016 presidential election changed. Iowa, New Hampshire and Nevada all transformed the landscape in both parties.
On Saturday night, in South Carolina, the Earth moved once again. Hillary Clinton won, as expected, but the breadth and depth of her victory were breathtaking. She prevailed by more than 47 percentage points in the most populous state to vote thus far, winning by more than twice the margin of her loss to Bernie Sanders in New Hampshire on Feb. 9.