Katie Wilson is officially Seattle's mayor. Her agenda: affordability, housing, and workers’ rights

Katie Wilson was sworn in as Seattle’s new mayor in a public ceremony at Seattle’s City Hall on Friday.

It was the first swearing-in that was open to the public in more than a decade, since mayor Ed Murray’s ceremony at the beginning of 2014. (Jenny Durkan held smaller public ceremonies in neighborhoods before holding a private ceremony at City Hall, and Bruce Harrell cancelled his planned public ceremony at the beginning of 2022 due to the spread of the Covid variant known as Omicron.)

“Is anyone here at Seattle City Hall for the first time this morning?” Mayor Katie Wilson asked the crowd of several hundred supporters. “That’s a lot of hands. Welcome.”

“This is your building,” she added, echoing her campaign slogan of “This is your city.”

Wilson narrowly defeated Seattle’s incumbent mayor, Bruce Harrell, in early November, by about 2,000 votes, a margin of less than 1%. She ran on a progressive platform of increasing affordability, addressing homelessness, and ensuring renters’ and workers’ rights.

RELATED: The inside story of Katie Wilson's win

Her campaign promises included more affordable and public housing, universal child care, summer care for elementary school students, and access to health care and healthy food. Some constituents also cheered her victory as a win for supporters of dense housing, dedicated bus lanes, and safe infrastructure for people on bikes.

During the campaign, Seattle’s incumbent mayor, Bruce Harrell, criticized Wilson's lack of experience in public office, contrasting that with his 12 years on Seattle City Council.

RELATED: 'No one saw us coming.' Katie Wilson accepts mayoral win in Seattle

Addressing supporters who came to watch the swearing-in, Wilson said, “I’m going to need you to come back here again and again and again, because the progress that we need to make is not just handed down from City Hall.”

“We would not have an eight-hour day or a minimum wage or social security without workers organizing and fighting for those things,” Wilson added. “Here in Seattle, we wouldn’t have some of the strongest tenant protections in the country without renters organizing for those laws. We wouldn’t have free transit for youth if students at Rainier Beach High School hadn’t stood up and made that their fight. … These things have never been given to us without people organizing and demanding change from those in positions of power.”

Wilson said she has put her transition team of 60 community organizers to work talking to people all over Seattle about how to improve the city, and she said they have already talked to more than 700 city residents.

Wilson also nodded to President Donald Trump’s remarks about her in November, when he said she is a “very, very liberal slash communist mayor.”

“It’s nice to feel seen,” Wilson said.

Pauline Van Senus, known as Seattle’s “transit fairy” for riding the bus from White Center to clean and beautify bus stops throughout the city, said she was “beyond thrilled, beyond delighted” and “tickled pink” to be the person who officially swore Wilson in as Seattle’s next mayor.

RELATED: At Katie Wilson’s longtime nonprofit, Seattle mayor’s race brings cheers and changes

One of the speakers at Wilson’s ceremony was Cynthia A. Green, who has lived in Seattle for 80 years and works to support grandparent and kinship caregivers.

“Today is more than a celebration for our mayor; it is a victory for the people who refuse to disappear from this city,” she said. “For young people chartering a future clouded by decisions they did not choose, for elders who stayed when staying itself became an act of courage, for mothers and kinship caregivers keeping families together with too little support, for artists who gave Seattle its voice even as they struggle to keep a roof over their heads.”

“Seattle does not belong only to the powerful or to the ones with wealth collected,” she added. “It also belongs to the people who love it, labor in it, and believe in it. This is our city.”