Hillary Clinton expected to roll over Bernie Sanders in Tuesday’s two Democratic contests after losing both Maine and Nebraska to the progressive upstart over the weekend. Clinton won Mississippi easily as expected, but Michigan refused to play to the script. She had a commanding polling lead in the key Rust Belt state; not one poll listed by Real Clear Politics for the entire 2016 cycle put Sanders on top, and only one taken in September put her lead at less than double digits.
The polling average over the last month had Clinton ahead by 21 points in the primary state. And yet Sanders pulled off a stunning upset, edging Clinton 49.8/48.3 in the popular vote.