RUNOFFS Primary runoffs between the top two vote-getters may take place in some states if no candidate receives over a certain threshold of the vote in the primary: 30% in North Carolina (only if requested by the runner-up) 35% in South Dakota 50% in Alabama, Arkansas, Georgia, Louisiana, Mississippi, Oklahoma, South Carolina, and Texas Georgia conducts a general election runoff between the top two vote-getters on Dec. 3 if no candidate receives a majority on Nov. 5.