Its the biggest election day of the year so far. Welcome to cnns Special Coverage of super tuesday im wolf blitzer in washington and im kate bolduan in new york. The first polls are closing in just a few hours from now. And turnout in states like North Carolina is strong as millions of americans and six next extreme states are now voting for republicans. It is a big day, 865 delegates are at stake. Donald trump expected to win most of them making the republican front runner almost unstoppable potentially. By the end of this light tonight, trump is expected to be within striking distance of the 1,215 delegates needed to win the republican president ial nomination, which raises the big question, what does nikki haley do next . Our less than an hour will be getting our first early clues about the outcome of tonights vote. Thats where we get the first results from our exit polls. We have our reporters fanned out across the nation right now is better. Voters are heading to the polls. I want