Hillary Clinton surges toward nomination with at least 3 more primary wins

 Hillary Clinton added at least three more states to her victory column Tuesday night, strengthening what's rapidly becoming an all-but-unstoppable march to the Democratic presidential nomination.The Democratic front-runner expanded her sizable delegate lead with wins in Maryland, Pennsylvania and Delaware. But Bernie Sanders stopped her from sweeping the night with a win in Rhode Island. The primary in Connecticut remained too close to call.Already, Clinton can lose every remaining primary