Kaiser Strike Echoes 1946 Oakland General Strike: Lessons From Healthcare Labor
More than 35,000 Kaiser Permanente healthcare workers are engaged in what organizers call the largest coordinated unfair labor practice healthcare strike in recent U.S. history. It started with 31,000 nurses and health professionals walking out on January 26, then escalated when 3,000 to 4,000 pharmacy and laboratory workers joined them on February 9. This phased approach—nurses first, then the workers who fill prescriptions and run diagnostic tests—wasn’t accidental. It’s a deliberate tactical choice that echoes historical labor campaigns while targeting the specific vulnerabilities of modern healthcare systems.
The dispute centers on disagreements about pay, staffing levels, and the role of collective bargaining in a nonprofit health system. Kaiser reported $7.9 billion in net income through the first three quarters of 2025 and maintains $66 billion to $67 billion in unrestricted reserves. The unions filed complaints with the National Labor Relations Board, alleging the health system violated federal labor law by walking away from national bargaining negotiations in December 2025 and refusing to negotiate in good faith with the coalition of 23 unions representing over 60,000 employees.
The 1946 Oakland General Strike offers both inspiration and cautionary lessons about how worker solidarity can succeed or fail.
When National Bargaining Collapsed
The dispute emerged from the breakdown of national bargaining between the nonprofit health system and the Alliance of Health Care Unions. This group has handled negotiations since a landmark 1997 Labor-Management Partnership agreement established new ways for workers and management to solve problems together. National negotiations began in May 2025. Initial contracts expired on September 30, 2025, for nurses and other healthcare professionals represented by UNAC/UHCP.
UNAC/UHCP sought wage increases of 25% over four years, citing inflation that has made wages insufficient to cover housing and living costs in California. In Southern California, a single-bedroom apartment commands monthly rents exceeding $2,500. Management proposed 21.5% wage increases over the contract period. When combined with automatic raises and regional pay differences, this totaled approximately 30% average compensation increases according to company calculations.
When negotiations stalled in December 2025, management made a strategic decision that proved transformative for the conflict. The company walked away from the national bargaining table and attempted to shift unresolved issues to 53 local bargaining tables. This broke apart the coalition that had kept all the unions working together since 1997. This move prompted UNAC/UHCP to file unfair labor practice charges with the National Labor Relations Board, alleging the health system violated its duty to bargain in good faith.
On January 21, the Oakland-based health system filed a lawsuit in federal court seeking to end the system where all unions negotiate together. The lawsuit asked courts to overturn the decades-old Labor-Management Partnership framework. Management argued publicly that the coalition approach to national bargaining had become “gridlocked” and that moving issues to local bargaining tables represented “the most effective and timely path” to contract resolution.
Union leaders contended that this strategy intentionally weakened workers’ negotiating power. It fragmented the unified front that had historically constrained management’s ability to pit one group of workers against another or one region against another.
The January 26 Walkout
On January 26, approximately 31,000 nurses, nurse anesthetists, pharmacists, physician assistants, midwives, rehabilitation therapists, speech language pathologists, dietitians, and other healthcare professionals represented by UNAC/UHCP launched an open-ended unfair labor practice strike. They walked out at facilities across California and Hawaii. Calling it an unfair labor practice strike mattered legally: under federal labor law, workers striking in response to employer unfair labor practices can’t be permanently replaced. Upon strike conclusion, they retain the right to return to their positions even if the company hired replacements.
This contrasts with economic strikes, where employers can hire permanent replacements. The legal distinction matters for workers deciding whether to walk out—it’s the difference between a protected right to return and potentially losing your job forever.
Approximately 28,000 of the 31,000 striking workers were based in Southern California, where the health system operates some of its largest medical centers and serves its most densely populated markets. This geographic focus amplified media attention, patient impact, and political pressure in California’s most populous region.
UNAC/UHCP framed the strike as a patient care issue rather than purely an economic dispute. President Charmaine S. Morales stated that workers were “striking because Kaiser has committed serious unfair labor practices and because Kaiser refuses to bargain in good faith over staffing that protects patients.” This shift to describing the strike as fighting for patients rather than worker self-interest represented a deliberate strategic choice designed to counter management messaging that characterized the strike as “designed to disrupt the lives of our patients” and as “unnecessary” given the company’s wage proposal.
The health system announced that hospitals and nearly all medical offices would remain open during the strike. Operations would be maintained through backup staff including doctors, managers, trained staff, and contracted professionals. The company had spent months preparing: it hired thousands of temporary nurses, clinicians, and other staff through staffing agencies, expanded contracted services, and worked with community partners and retail pharmacy networks.
However, some outpatient laboratories temporarily closed or operated under reduced hours, and some pharmacies closed at strike locations, creating operational disruptions that affected patient care access even as the system remained technically operational.
Worker Testimonies
Worker testimonies revealed the underlying tensions driving the strike. One nurse described working with inadequate staffing in acute care settings: “We have very sick patients who need intensive care, but not enough resources, not enough nurses to be able to care for the patient safely.” Another nurse with 25 years at the health system described simultaneous role combinations: “When I come in, I am the tech, I am the secretary, I am the IT, I am the lead person on the floor. By the end of a 12-hour shift, you are tired, exhausted, and can’t give anymore.”
A pediatric physical therapist noted staffing ratios she characterized as “horrid.” Therapists were forced to intake new patients rapidly, creating wait times of three to four weeks for follow-up appointments, with some patients waiting up to three months.
UNAC/UHCP released a detailed report on January 15 titled “Profits Over Patients,” documenting financial practices and arguing the organization had strayed from its public health mission. The report pointed to specific financial data: $2.021 billion net income in Q1 2025, $3.257 billion in Q2 2025, and $2.577 billion in Q3 2025, totaling $7.9 billion across the first three quarters of the year.
External analysts estimated the health system held more than $66 billion to $67 billion in unrestricted cash and investments at the end of 2024. UNAC/UHCP used this information to argue that claims about inability to afford safer staffing levels and higher wages wasn’t about money but about priorities. “Kaiser isn’t strapped for resources. It’s making choices—and those choices are hurting people,” stated President Morales.
The Phased Escalation Strategy
On January 29, three days into the nurse strike, United Food and Commercial Workers (UFCW) Southern California local unions representing pharmacy assistants, pharmacy technicians, clinical lab scientists, and medical laboratory technicians issued a 10-day strike notice. They announced they would launch their own unfair labor practice strike on February 9. This 10-day notice requirement is mandated by Section 8(g) of the National Labor Relations Act, which prohibits healthcare workers from striking without providing at least 10 days’ written notice to the employer and the Federal Mediation and Conciliation Service.
The UFCW locals involved—primarily UFCW Local 135 in San Diego County, alongside Locals 324, 770, 1167, and 1428 across Southern California—represented over 4,000 healthcare workers in total. Pharmacy employees’ contracts had expired November 1, 2025, and clinical laboratory scientist and medical laboratory technician contracts expired February 1.
The strategic timing of the UFCW strike expansion wasn’t coincidental. By February 9, the health system had deployed contingency staffing across most operations and had organized their response to the strike. The addition of pharmacy and laboratory workforce disruption was calculated to compound operational pressure at a moment when management had stabilized the initial nurse walkout.
UFCW Local 135 Secretary-Treasurer Grant Tom stated: “Issuing a 10-day Unfair Labor Practice strike notice is not a decision we take lightly. Kaiser’s refusal to return to the National Bargaining table leaves us no choice.” Pharmacy services directly affect patient care through prescription delays and fulfillment disruption. Laboratory testing backlogs can paralyze clinical decision-making throughout a health system. When both simultaneously disappear, hospitals face compounded pressure that temporary staffing arrangements struggle to mitigate.
By February 10, the strike had expanded to over 35,000 total participants across two coordinated worker categories. Union organizations characterized this as the largest unfair labor practice healthcare strike in recent U.S. history. The previous largest healthcare strike was the 2023 action involving 75,000 workers across a three-day period. That strike resulted in a tentative agreement increasing minimum wages to $25 per hour in California and $23 per hour in other states, with 21% across-the-board wage increases over four years.
The 2026 strike was different because of how long it lasted—it was open-ended rather than time-limited—and in being legally classified as unfair labor practice action rather than economic strike.
Echoes of 1946: The Oakland General Strike
The 1946 Oakland General Strike involved 50,000 workers across two days—December 3 and December 5—in response to retail merchants’ resistance to unionization of department store employees.
Beginning at 5:00 AM on December 3, 1946, the strike erupted when city government and business leaders called police to remove picketers supporting striking female department store clerks at Kahn’s and Hastings department stores. In response, the American Federation of Labor (AFL) in Alameda County declared a “Work Holiday,” leading 100,000 workers to walk off their jobs, with all strikers commanding stores to close except pharmacies, food markets, and bars.
The 1946 strike’s phasing resembled the 2026 action: initial action centered on specific workers (retail clerks in 1946, nurses in 2026), followed by expanding waves of workers from other sectors or categories (AFL unions in 1946, UFCW pharmacy and lab workers in 2026). Both employed strategic escalation rather than maximum mobilization from day one. Both encountered immediate operational responses from the targeted institutions: in 1946, police attempted to remove picketers and maintain scab truck deliveries; in 2026, the health system deployed contingency staffing and temporary professionals.
The two strikes diverged significantly in outcome and duration. The 1946 Oakland General Strike lasted 54 hours, ending on December 5 at 11:00 AM when the AFL Central Labor Council declared the strike ended. The council reportedly based the decision on the Oakland City Manager’s promise that police would not again be used to bring in scabs. The rapid dissolution disappointed many workers.
The first day saw strong participation, but by the second day many workers had returned to their jobs. Some workers and truckers remained picketing with the retail clerks, only to be ordered back to work on penalty of disciplinary action. While four labor-sponsored candidates won election to the Oakland City Council and every official in the Oakland Teamsters Local 70 was removed from office, the original retail clerks returned to work without protection and without gains. Labor historians characterize this as a failure of strike leadership to turn the early success into lasting wins.
Lessons Applied
The 2026 strike chose a different model: open-ended duration with phased escalation rather than maximum-force initial action followed by rapid termination. Research shows that strikes lasting only days often fail to pressure employers into substantial concessions. Brief strikes succeed only when the disruption is near-complete and economically catastrophic.
The open-ended designation signals to the health system that workers are prepared to remain out indefinitely. This keeps the financial and operational pressure on rather than hoping a brief dramatic action forces resolution.
The phased approach—beginning with nurses, expanding to pharmacy and lab workers—targets the weakest points in how the system works. It maintains legal compliance and public support by never completely shutting down emergency functions.
Pharmacy and lab workers joined precisely because their absence, combined with already-depleted nursing staff, creates problems that multiply rather than simple reduction in coverage. When nurses are out, hospitals can hire temporary nursing staff. When nurses and pharmacy workers are out, even temporary nurses can’t function effectively without prescription fulfillment. When nurses, pharmacy workers, and lab technicians are all out, clinical decision-making grinds to a halt. Doctors can’t order tests or get results to guide treatment.
Research on healthcare strikes demonstrates limited impact on patient mortality rates. A study looking at 17 other studies examining in-hospital mortality during healthcare strikes found no significant difference in mortality rates during strike versus non-strike periods, with slightly lower risk (0.91 means 9% lower). However, the same research found substantial disruption to care delivery in specific categories: emergency department admissions dropped dramatically during strikes. While hospital wait times showed variable relationships to strike action, some studies documented increased efficiency rather than degradation.
The Coalition Structure
The strike operation required coordination across two distinct union organizations representing different workers, with different histories negotiating with the health system, and different goals. UNAC/UHCP represents over 40,000 registered nurses and healthcare professionals across California and Hawaii. It grew from a founding group of 40 registered nurses in Southern California in 1972. The organization has expanded from an all-RN union to represent multiple job classifications including optometrists, pharmacists, physical and occupational therapists, case managers, nurse midwives, social workers, clinical lab scientists, physician assistants, nurse practitioners, and hospital support staff.
The UFCW, by contrast, is primarily known as a grocery store and retail workers’ union with 1.3 million members internationally, but it’s been increasingly active in healthcare worker organizing. UFCW Local 135, based in San Diego County, represents over 11,000 workers across multiple sectors including grocery, retail, healthcare, food processing, and the cannabis industry.
The organizational structure uniting these two unions operates through the Alliance of Health Care Unions, established in 2018 and consisting of 23 local unions representing approximately 62,000 employees across multiple states. The Alliance was formed to provide unified national bargaining power and stop management from playing different groups against each other.
This structure emerged from decades of labor organizing beginning in the 1940s. By the time the Labor-Management Partnership was established in 1997, it created rules that would protect workers’ power when they act together while creating structures for joint problem-solving.
Tactical Choices and Pressure Points
The decision to conduct an open-ended phased strike rather than a time-limited all-or-nothing walkout reflects sophisticated labor strategy informed by decades of strike analysis. Labor relations research documents a “strong negative relation between strike duration and the value of the settlement to workers, because unions are less likely to win.” However, this research also shows that quick-resolution strikes often occur only when one side achieves overwhelming initial pressure or when outside mediators get involved.
The decision to phase worker participation—nurses first, pharmacy and lab workers two weeks later—used escalation strategy, a tactic with deep American labor roots. The health system had time to prepare for a nurse strike, but when pharmacy and lab services were disrupted simultaneously, the compounding effect exceeded what temporary staffing could easily overcome.
The legal strategy—designating the action as an unfair labor practice strike rather than economic strike—changed workers’ legal protections. Under NLRA Section 7, employees have protected rights to organize and act together for collective bargaining or mutual aid and protection, with strikes legally protected. Unfair labor practice strikes get stronger protection: striking workers can’t be permanently replaced. Upon strike conclusion, they have the right to get their jobs back even if replacement workers were hired.
Economic strikers, by contrast, can be permanently replaced, though recent NLRB decisions have begun restricting replacement hiring motivated by anti-union hostility. By filing ULP charges in December 2025 alleging the health system committed unfair labor practices through abandoning national bargaining, the unions secured better legal protection to get their jobs back.
The Financial Framing Battle
The financial framing strategy—emphasizing the $66 billion to $67 billion in unrestricted reserves and $7.9 billion in net income for the first three quarters of 2025—tried to reframe the negotiations. Instead of “can workers afford to wait for strikes,” the question became “can Kaiser afford to refuse reasonable demands when sitting on extraordinary financial reserves.” This reframing challenged the argument that wage increases were constrained by business necessity.
If the health system possessed $67 billion in unrestricted reserves, unions argued, claims about inability to afford better staffing and higher wages was about what Kaiser chose to prioritize, not what it could afford. The company countered that these reserves were needed for earthquake-safety hospital upgrades mandated by California, funding facility improvements, purchasing advanced technology, and maintaining cash reserves sufficient for daily operations.
The company also noted that while relying on investment returns and balance sheet strength to bridge operating performance gaps, “our cash reserves are sufficient for daily operations” but “we still have less cash available than similar organizations.”
By maintaining unified national bargaining despite attempts to fragment the process into 53 separate local bargaining tables, the Alliance of Health Care Unions stopped management from playing different groups against each other. This required coordination: UNAC/UHCP and UFCW locals had to coordinate their messages, timing, and strategy even though they represent different types of workers with different workplace cultures.
Measuring Strike Effectiveness
The strike’s first two weeks demonstrated sustained participation despite contingency staffing. The health system claimed that over 35% of striking employees had returned to work by the third week, suggesting approximately 65% of striking employees maintained the strike. Whether this number was accurate or spin was debated.
Operationally, the health system maintained open hospitals and medical offices as promised, with emergency departments continuing to function and critical care services maintained. However, some outpatient laboratories “temporarily closed or have different operating hours,” which could “lengthen wait times for results or services,” and some pharmacies closed at strike locations. Patients were encouraged to use mail-order pharmacy services (estimated delivery times 3 to 5 days) and offered virtual care alternatives. Some non-urgent procedures and elective surgeries were rescheduled.
The operational disruption was real but limited compared to scenarios where emergency services ceased entirely. This reflected both healthcare-specific legal requirements (emergency services must continue) and substantial financial and operational resources enabling contingency planning most industries lack.
Media coverage gave unions opportunities to make their case. Major news outlets including Reuters, Los Angeles Times, and healthcare industry publications covered the strike extensively. Union spokespersons appeared on regional and national media emphasizing patient safety implications of understaffing and worker financial struggles in high-cost-of-living regions. The health system received less sympathetic coverage, particularly when reporters examined the $66 billion reserve and $7.9 billion net income figures.
Federal mediator involvement provided another indicator of strike pressure. The Federal Mediation and Conciliation Service (FMCS) became involved as required by law for healthcare institution strikes. It provided neutral third-party perspective and helped with negotiations. Historical data shows FMCS mediation has successfully resolved numerous healthcare labor disputes. However, by mid-February, no settlement had been reached, suggesting the two sides were still far apart.
The NLRB investigation of December 2025 ULP charges would determine whether the health system violated federal labor law by abandoning national bargaining and attempting to bypass the established collective bargaining process. An NLRB finding that unfair labor practices occurred could mandate return to national negotiations, giving unions more power. Conversely, NLRB dismissal of ULP charges would prove Kaiser had the legal right to move to local bargaining.
What Comes Next
By mid-February, the strike remained in its third week with no settlement in sight. Union leaders and management both indicated limited bargaining had resumed at local levels. However, the dispute over national versus local negotiations remained unresolved.
Several potential trajectories appeared possible. The most likely near-term scenario involved continued federal mediation efforts with both parties slowly adjusting positions. Historical data from FMCS mediation success cases suggest healthcare labor disputes typically resolve within weeks or a few months rather than extending indefinitely, though this varies substantially based on how far apart the two sides are.
Alternatively, if both sides dug in, the strike could persist for months. This would create severe operational strain and financial hardship on workers despite union strike funds and potential supplementary support. Historical precedent suggests that month-long healthcare strikes are rare; most conclude within two to four weeks through a deal or workers giving up. A multi-month strike would be unusual for a healthcare strike, though not unprecedented.
A third scenario involved further escalation through additional worker categories or geographic expansion. If UNAC/UHCP and UFCW demonstrated ability to keep workers on the picket line for weeks, workers in other regions (Northern California, Hawaii, Colorado, Washington) might view the Southern California action as precedent for their own organizing or strike readiness. This could force national settlement discussion sooner than preferred. Extension to 60,000 plus workers across multiple states would create a crisis across the whole system.
A fourth potential development involved legal intervention through NLRB processes or federal court litigation. If the NLRB investigated December 2025 ULP charges and found unfair labor practices occurred through abandoning national bargaining, the board could mandate return to negotiations with the full Alliance coalition. This would give unions more power. Conversely, if courts heard the legal challenge to the national bargaining process, judicial ruling could change the basic terms of the fight—either validating the right to decentralize or validating the unions’ assertion of protected collective bargaining rights.
The strike involving over 35,000 healthcare workers is a major turning point in healthcare labor history. It demonstrates both that workers can still organize large strikes in the United States and the complexity of deploying strike power in sectors where work stoppages directly affect public health and patient care. By employing phased escalation—beginning with nurses, expanding strategically to pharmacy and laboratory workers—the unions deployed tactics informed by historical labor experience while adapting to the vulnerabilities and legal limits of modern healthcare.
The comparison to the 1946 Oakland General Strike is instructive because it’s different. The 1946 action demonstrated extraordinary worker solidarity and the capacity to mobilize 100,000 participants, yet failed to achieve lasting victories for the retail clerks who initiated the action. Leadership didn’t turn the early energy into longer-term organizing. The 2026 unions learned from this history by choosing open-ended duration, keeping all the unions together even as Kaiser tried to split them apart, and developing sophisticated media and financial framing that puts worker demands in the context of Kaiser’s financial resources.
Whether these strategic choices ultimately produce contract victories or are insufficient to overcome employer power remains uncertain as the strike continues. But the outcome will affect how healthcare workers organize across the country. It will demonstrate whether contemporary labor movements can overcome legal barriers, employer pushback, and public concerns about strikes in critical services to achieve meaningful victories that improve wages, working conditions, and staffing levels across healthcare systems.
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