Mazie Hirono Democratic Mazie Hirono Democratic The 2018 United States Senate election in Hawaii took place on November 6, 2018.

Senator Mazie Hirono ran for reelection to a second term.

Hirono ran unopposed in her party's primary and was easily reelected, defeating Republican challenger Ron Curtis.

She won the highest vote percentage of any U.S. Senate candidate in 2018.

Senators Organizations There were no polls taken, and the race was rated safely Democratic by all forecasters.