It was originally scheduled for March 24, 2020, but was moved to June 9 due to the COVID-19 pandemic, and previously cast early mail-in votes were disallowed and separately counted.

Former vice president and recently determined presumptive nominee Joe Biden won the primary and all 105 delegates with roughly 85% of the vote, while senator Bernie Sanders only received little more than 9%.

The move marked a departure from past years, shifting away from an earlier March contest on Super Tuesday (traditionally made up of many southern states and therefore dubbed the "SEC primary").

In the open primary, candidates had to meet a threshold of 15 percent at the congressional district or statewide level in order to be considered viable.

[9] The state committee meeting was subsequently held also on June 20 and voted on the 23 at-large delegates for the Democratic National Convention.