Democratic Party of Hawaii staff tabulate presidential primary ballots in Honolulu on Friday, May 22, 2020. The Democratic Party of Hawaii is scheduled Saturday to release the results of its party-run presidential primary which was delayed by more than a month due the coronavirus pandemic. The party expected most members to vote by mail and some to cast ballots at about 20 in-person polling sites. But concerns about the virus forced the party to cancel in-person voting and allow only mail ballots. (AP Photo/Caleb Jones)

Democratic Party of Hawaii staff tabulate presidential primary ballots in Honolulu on Friday, May 22, 2020. The Democratic Party of Hawaii is scheduled Saturday to release the results of its party-run presidential primary which was delayed by more than a month due the coronavirus pandemic. The party expected most members to vote by mail and some to cast ballots at about 20 in-person polling sites. But concerns about the virus forced the party to cancel in-person voting and allow only mail ballots. (AP Photo/Caleb Jones)

Democratic Party of Hawaii staff tabulate presidential primary ballots in Honolulu on Friday, May 22, 2020. The Democratic Party of Hawaii is scheduled Saturday to release the results of its party-run presidential primary which was delayed by more than a month due the coronavirus pandemic. The party expected most members to vote by mail and some to cast ballots at about 20 in-person polling sites. But concerns about the virus forced the party to cancel in-person voting and allow only mail ballots. (AP Photo/Caleb Jones)

FILE - In this March 7, 2020, file photo, Democratic presidential candidate former Vice President Joe Biden acknowledges the crowd during a campaign rally in Kansas City, Mo. Biden has won the presidential primary in Hawaii. The results were announced Saturday, May 23, 2020. The party-run primary was delayed by more than a month because of the coronavirus. (AP Photo/Charlie Riedel, File)

Democratic Party of Hawaii staff tabulate presidential primary ballots in Honolulu on Friday, May 22, 2020. The Democratic Party of Hawaii is scheduled Saturday to release the results of its party-run presidential primary which was delayed by more than a month due the coronavirus pandemic. The party expected most members to vote by mail and some to cast ballots at about 20 in-person polling sites. But concerns about the virus forced the party to cancel in-person voting and allow only mail ballots. (AP Photo/Caleb Jones)