Editor’s note: These results have been updated as of 7:15 a.m. Sunday.

In the biggest upset of the primary election, Honolulu attorney Kim Coco Iwamoto defeated House Speaker Scott Saiki in the race for House District 25.

Saiki had 44.6% of the vote compared to Iwamoto’s 49.3% for the district, which includes Ala Moana, Kakaako and downtown Honolulu.

Saiki, who has served in the state House since 1994 and has been speaker since May 2017, narrowly won races against Iwamoto, a small business owner, in the 2020 and 2022 primaries. Both are Democrats, and there is no other contender in the contest. This time Iwamoto led Saiki by 254 votes, according to results posted Sunday morning.

“I wasn’t just campaigning against him. I was campaigning against the entire Democratic establishment,” Iwamoto told Hawaii News Now.

Gov. Josh Green said his heart goes out to Saiki.

“It will be somewhat of a shock to the system at the Legislature if the speaker doesn’t prevail,” Green said Saturday night.

In other closely watched legislative races, Democrat Clayton Hee, who was seeking to reclaim his Senate District 23 on Oahu, lost to Ben Shafer, 39.3% to 50.7%. Shafer will face Republican incumbent Brenton Awa, who was unopposed in the primary, for the district that stretches from Mokuleia to Laie to Kaneohe.

The contest for the Big Island’s Senate District 1 (Hilo, Paukaa, Papaikou and Pepeekeo) featured longtime incumbent Lorraine Inouye against Laura Acasio, a former senator. Inouye won the seat with 57.2% of the vote to Acasio’s 34.7%. There is no Republican candidate.

Crowded Waianae, Kapahulu Races

On Sunday morning, Cedric Gates maintained an 84-vote lead over Stacelynn Eli in the race for the Democratic nomination to represent the Waianae Coast in Senate District 22. An automatic recount is triggered if candidates are separated by fewer than 100 votes. Gates, who picked up an endorsement from the area’s former senator, Maile Shimabukuro, had 45.8% of the vote to Eli’s 43.46%.

Samantha DeCorte, who came within 40 votes of votes of beating Shimabukuro in 2022, had a big lead over her opponent in the Republican race for that same district. DeCorte had 65.3% to opponent Teri Kia Savaiinaea’s 17.3%.

The current senator representing that district, Cross Crabbe, was also running for the District 45 House seat currently held by Gates. A legal deadline forced Gov. Josh Green to appoint Shimabukuro’s replacement just 10 days before the primary election.

Rather than hand either Gates or Eli a boost by appointing either of them to the vacancy, Green appointed Crabbe, who was not seeking the Senate seat. Crabbe is Gates’ office manager.

Crabbe lost to West Side educator Desire DeSoto, 24.5% to 47.9%, for the Democratic nomination to the Waianae House seat. They were trailed by Philip Ganaban (11.2%) and Ranson Soares (3.9%).

Businessman Chris Muraoka won the Republican race with 51.3% of the vote compared to his opponent Tiana Wilbur with 32.6%.

Tina Grandinetti defeated four others in the Democratic race for House District 20, which covers an area of East Honolulu including Kapahulu and parts of Kaimuki, Diamond Head and Kahala. Grandinetti received 40.2% of the vote. Others in the race are John Choi (19.8%), Kevan Wong (17.4%), James Logue (7.6%) and George Hooker (6.4%).

The winner will face Republican nominee Corinne Solomon in the general election.

Many Incumbents Automatically Reelected

All 51 House seats are up this year, but Democratic incumbents Justin Woodson, Mark Hashem, Della Au Belatti, Sam Kong, Rachel Lamosao and Darius Kila as well as longtime GOP incumbent Gene Ward faced no challengers and won their races outright.

There are 25 members in the state Senate. Thirteen of the seats are on the ballot in 2024, but four unopposed Democratic incumbents — Tim Richards, Troy Hashimoto, Henry Aquino and Jarrett Keohokalole — were effectively reelected Saturday, too.

Many other races were contested, however.

In another close race that will go to an automatic recount, Rep. Sonny Ganaden trailed challenger Shirley Ann Templo by 46 votes on Sunday morning. Templo had 43% of the vote to Ganaden’s 40.4% in House District 30, which covers Kalihi, Kalihi Kai, Keehi Lagoon and Hickam Village.

In House District 29, May Mizuno was appointed last year to replace her husband, John Mizuno, who took a job in the Green administration. Mizuno had 34.6% of the vote while her Democratic opponent, Ikaika Hussey, had 56.3%. Hussey will face Republican Carole Kaapu for the seat that represents Kamehameha Heights, Kalihi Valley and a portion of Kalihi.

In House District 50 (Kailua and a portion of Kaneohe Bay), incumbent Natalia Hussey-Burdick received 38.5% and lost to challenger Mike Lee who had 54.6%. Lee will run against GOP candidate Timothy Connelly in the Nov. 5 general election.

In the open House District 23 (Moiliili and McCully), Ikaika Olds defeated three candidates with 40.7% of the vote. Ian Ross came in second with 31.2%. Pat McCain had 10.5% and Paul Robotti 1.5%. There is no Republican candidate so Olds has won the seat outright.

Democratic incumbent Trish La Chica won the primary over Ken Inouye, 51.1% to 42.6%, in the race for House District 37, which includes Mililani and Waipio Gentry. La Chica will face Republican Taylor Kaaumoana in the general election.

And Democratic incumbent Amy Perruso easily defeated Mark Clemente in the District 46 race to represent a large swath of Oahu from Launani Valley to Mokuleia. Perusso had 58.1% of the vote to Clemente’s 31.3%. She will face Republican Daniel Gabriel, who was unopposed, in November.

For a complete list of all Hawaii election results, including other state House and Senate races, click here.