David Hackney holds a Bachelor of Arts from Cornell University, a Juris Doctor from Harvard Law School, and a Master of Public Administration from Harvard Kennedy School. He began his career as an attorney and activist, later serving as a prosecutor for the United States Department of Justice in California. Hackney has also held roles as a UN Trial Advocacy Instructor and in human resources and employee relations at a major corporation. He has served on the Washington State Human Rights Commission and was elected to the Washington House of Representatives in 2020, defeating the incumbent. Hackney's diverse background and progressive stances have positioned him as a leader in various sectors.

David Hackney blends progressive advocacy with an ideologically agile approach, advocating for universal healthcare while simultaneously showing surprising alignment with opposing factions on environmental regulations. His commitment to human rights and criminal justice reform is underscored by his service on the Washington State Human Rights Commission and his legislative focus on reducing recidivism. Hackney's background as a prosecutor and his corporate experience at Amazon hint at a nuanced understanding of both public service and private sector dynamics.