Kansas was one of two contests in the Democratic primaries with in-person voting set for May 2, a Saturday,[2] alongside the territorial Guam caucus, which was cancelled and postponed.

Instead of a caucus to apportion delegates, the Kansas Democratic Party, for the first time since 1992,[3] used a party-run primary with ranked-choice voting.

[5] Due to the pandemic every registered Democrat received mail-in ballots already on March 30, the first day to vote in the election.

In the closed party-run primary, voters ranked their top five candidates for the Democratic presidential nomination.

The 39 pledged delegates to the 2020 Democratic National Convention were allocated proportionally on the basis of the results of the primary.