Co-founder of Seattle Transit Riders Union Wins Mayoral Bid

Katie Wilson, co-founder and general secretary of Seattle's Transit Riders Union, edged out incumbent Seattle Mayor Bruce Harrell in one of the nation's closest races on Nov. 4 that took nine days before a winner could be declared.

2 minute read

November 20, 2025, 9:00 AM PST

By Irvin Dawid


Current Seattle mayor-elect Katie Wilson holding up a sign during a transit protest.

nathantain, CC BY 2.0, via Wikimedia Commons / Wikimedia Commons

On Nov. 12 in Washington, D.C., President Donald Trump signed a controversial funding bill to reopen the federal government after a record 43-day shutdown. Also that day in the 'other' Washington, the 780,000 residents of the state's largest city learned who their new mayor would be.

"As of Wednesday evening, when the Seattle Times called the race, Wilson had garnered [pdf] 138,489 votes, a 1,976 vote lead over her opponent, Bruce Harrell, the first-term incumbent," reported Jared Brey for Governing on Nov. 14.

Wilson is a well-known activist in Seattle and the head of the Transit Riders Union, an advocacy group that has campaigned for a range of progressive causes related to transportation, housing and the cost of living.

Wilson is a former columnist for the Seattle news website, Crosscut, now Cascade PBS. Two of her columns were posted here by James Brasuell, AICP, Planetizen's former editorial director:

"Wilson, 43, is new to elected office, but she’s spent years as an activist advocating for progressive policies," reported Nate Sanford for Cascade PBS on Nov. 14. "In a victory speech at a Seattle union hall, she described herself as a socialist and a progressive, and reiterated her campaign's core focus on affordability."

Mamdani comparison welcomed

"Wilson has welcomed comparisons to Zohran Mamdani, the democratic socialist who won New York City’s mayoral race," adds Brey for Governing in the source article.

She supports raising taxes on big businesses, and was the “intellectual architect” of Seattle’s Jumpstart Tax, a tax on corporations with large payrolls, according to [Sandeep Kaushik, a local political consultant.] But she has also said she’s “not going to be stupid” about how she approaches progressive taxation as mayor.

For more on Wilson from a local perspective, Fox 13 Seattle takes a closer look at the new mayor, noting that "her campaign has touted Wilson's role in designing the ORCA LIFT program," a low-income discount fare program for the Puget Sound region.

Friday, November 14, 2025 in Governing

Young Professional

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban and Environmental Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

September 16, 2026 - Zachary Whalen

Overlapping highways

The state-sanctioned urbicide of Austin

People don’t kill cities. Freeways do.

September 8, 2026 - Benjamin Schneider

Geese flock to a frozen pond in Aurora, Colorado. There are houses in the background.

Colorado’s Largest Data Center Could Rise Next to Homes — Without a Public Hearing

The proposed campus would consume 11 times the power of Denver International Airport; as it has across the country, opposition mounts.

September 17, 2026 - Capital & Main

A coal power plant in Iowa billows smoke into the air.

Nation's most wind-powered state turns to coal as data centers increase energy demand

For the first time in decades, Iowa has increased its generation of coal power.

September 17 - Inside Climate News

A sign on a fence describing the rain garden behind it.

NYC cools commuters with city's first rain garden above a bus stop

New York City officials say the plants in the rain garden can absorb 16 gallons of rainwater during heavy storms.

September 17 - Gothamist

A map showing Brightline West's intended route from  Las Vegas to Rancho Cucamonga, California.

Brightline West’s future may rely on $6 billion federal loan

The company has until Nov. 2 to make a $400 million equity investment into its proposed high-speed rail line.

September 17 - Smart Cities Dive

FREE Course: Walkable City 1: Why Walkability?

After describing his path towards focusing on walkability as the essence of good planning, Jeff Speck marches through his five principal reasons for making more walkable places.

Reinventing Malls: Planning Alchemy—Turning Gray Fields Into Gold

The course focuses on the opportunities and imperatives that shape reinvention of mall sites.