Statewide Delegates: Winner Take all if the top candidate receives a majority of votes or the top candidate is the only candidate to receive at least 15 percent of the vote, otherwise delegates are awarded proportionally to those candidates that receive more than 15 percent of the vote. Congressional District Delegates: Proportional - a 15% threshold is required to receive delegates.
Source for Popular Vote data: Mississippi Secretary of State Elections Division. 2016 State Republican Party Certified Primary Election Results, Mississippi Secretary of State Elections Division (http://www.sos.ms.gov/elections/electionResults/2016%20Republican%20Primary%20Certified%20Results.pdf) (accessed 23 Mar 2016)