The 2018 United States Senate election in Hawaii took place on November 6, 2018. Incumbent Democratic U.S. 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. This election was the fifth consecutive cycle in which a senate election was held in Hawaii after elections in 2010, 2012, 2014, and 2016.
The primary election took place on August 11, 2018.
There were no polls taken, and the race was rated safely Democratic by all forecasters.
Hirono won both congressional districts.
Official campaign websites