Portland workers take first step toward strike as city, union contract talks remain at impasse

Shane Dixon Kavanaugh — The Oregonian

Municipal trade workers vote to authorize strike in Portland

Rebecca Ellis — OPB

Portland City Workers Prepared to Strike Over Low Wages

Alex Zielinski — Portland Mercury

‘Negotiations at impasse’: Portland city workers may strike

Jennifer Dowling, Sam Campbell — KOIN 

City of Portland unions declare impasse

Don McIntosh — nwLaborPress

Union Accuses City Managers of Interfering with Strike Vote

Alex Zielinski — Portland Mercury