HUFFPOLLSTER: How Sanders Stunned Pollsters In Michigan

Polls faced one of the biggest misses in the modern polling era in Michigan on Tuesday. Marco Rubio also had a really bad night. And national polls show Donald Trump might have a ceiling among GOP voters, but benefits from the divided electorate. This is HuffPollster for Wednesday, March 9, 2016.

POLLS SERIOUSLY MISFIRED IN MICHIGAN - HuffPollster: "After a run of relative successes, polls missed in a big way Tuesday in Michigan's Democratic primary. Surveys showed Hillary Clinton a heavy favorite in the state, with those conducted in March giving her margins of between 11 and 37 points over Sanders. HuffPost Pollster, which includes all publicly available polling, gave Clinton an 18-point lead. Instead, Sanders pulled off a narrow victory, marking what could be a historic polling misfire. What happened? It's too early to know for sure, but there are a number of things that could have gone wrong.”