Sanders scores Michigan upset; Trump tightens grip with wins

Sanders scores Michigan upset; Trump tightens grip with wins-thehill: Bernie Sanders won a huge upset in Michigan on Tuesday night, giving his campaign a jolt of momentum even as Donald Trump tightened his grip on the Republican nomination by scoring victories in Michigan, Mississippi and Hawaii. Entering Tuesday, not one public poll had shown Sanders leading in Michigan, and most had him down by double-digits, creating expectations that Hillary Clinton would cruise to victory.