Tonight features primary runoff elections in North Carolina, South Carolina, and Mississippi. There is also a primary in Utah, but thanks to their convention selection process that can select or weed out candidates (Bob Bennett was defeated in that process, for example), it has some similarities to a runoff election. Mississippi has very little going on, so the big events of the night are the GOP governor’s race in SC, the Dem Senate race in NC, and the GOP primary in UT. For a preview of the night’s races click here and you can find update election results at Politico.