In December, Jenny Durkan announced that she would not seek a second term as mayor of Seattle. Weeks of speculation about potential replacements followed. But 2021 has brought more clarity. While none of our Very Serious candidates have yet entered the race, a bunch of others have. Here's who's running for mayor of Seattle this year (in alphabetical order). Henry Clay Dennison The Socialist Workers Party candidate for governor in 2020 has put his name in for Seattle's top post. Dennison is a rail worker and member of the SMART-TD union; he's also worked as a coal miner in Alabama and West Virginia.