Statewide Delegates: Proportional - the candidates are awarded delegates in proportion to the percentage of votes received. - a 15% threshold is required to receive delegates. Congressional District Delegates: Proportional - the candidates are awarded delegates in proportion to the percentage of votes received. - a 15% threshold is required to receive delegates.
Source for Popular Vote data: Tennessee Secretary of State Division of Elections. State of Tennessee March 3, 2020 Democratic Presidential Preference Primary Candidates for President of the United States, Tennessee Secretary of State Division of Elections (https://www.elections.tn.gov/county-results.php?OfficeByCounty=Candidates for President of the United States&Party=Democratic) (accessed 2020-03-28)