(CNN) – Voters in Utah, Mississippi, and North and South Carolina are heading back to the polls today in primary run-off elections. All eyes are on South Carolina where the governor's race could change the face of the state's Republican Party. Front-runner Nikki Haley is expected to win that primary, thanks in part to the very accusations that have dogged her campaign. Our Jim Acosta has the report. Watch 
Read more: South Carolina drama tops three primaries on Tuesday