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: Washington Secretary of State. March 10, 2020 Presidential Primary Results President Democratic Party, Washington Secretary of State (https://results.vote.wa.gov/results/20200310/President-Democratic-Party.html) (accessed 2020-03-25)