PBM Reform After Rutledge: Why ERISA Still Matters

In 2020, the U.S. Supreme Court gave states a major victory in the fight over PBM regulation.

In Rutledge v. Pharmaceutical Care Management Association, the Court upheld an Arkansas law that regulated pharmacy reimbursement. For pharmacies, state policymakers, and patient-access advocates, that decision mattered. It confirmed that state PBM laws are not automatically preempted by ERISA simply because they affect prescription drug benefits.

That was a big moment but apparently it was not the end of the ERISA fight.

After Rutledge, many people understandably viewed the Supreme Court’s decision as a turning point for state PBM reform. States had been trying to respond to reimbursement pressure and pharmacy deserts by regulating PBMs, but many states were hesitant on how far they could go with PBMs threatening to sue under ERISA. Rutledge gave states more confidence to keep going.

However; the PBM industry did not stop litigating and their arguments in favor of ERISA evolved.

Before Rutledge, the broader argument was that many state PBM laws were preempted because they touched employer-sponsored health plans. After Rutledge, that argument became harder to make in its broadest form. The Supreme Court had already said that states could regulate certain PBM reimbursement practices without automatically interfering with ERISA plan administration. So the next phase for PBMs became more targeted.

In PCMA v. Mulready, the Tenth Circuit reviewed Oklahoma’s Patient’s Right to Pharmacy Choice Act. The court held that several parts of the law were preempted by ERISA. Oklahoma later asked the U.S. Supreme Court to review the case, but the Court declined to take it. This is important because Mulready is not a U.S. Supreme Court decision. It did not overrule Rutledge and it did not say states are powerless to regulate PBMs. What it did do was give PCMA a post-Rutledge roadmap.

The lesson from Oklahoma is that courts may treat reimbursement regulation differently from laws that reach deeper into network design or plan administration. A state law focused on what pharmacies are paid may be viewed differently from a law that affects which pharmacies must be included in a network, how preferred pharmacy arrangements are structured, or how an ERISA plan administers its pharmacy benefit.

That distinction is becoming central to the next phase of PBM litigation. This also comes at a very different moment politically.

Congress passed PBM reform this year. That was a watershed moment. For years, PBM reform was largely a state-level issue. State legislatures were often the ones responding to community pharmacy concerns, patient-access issues, and questions about transparency. Now Congress has entered the conversation in a meaningful way.

The 2026 federal PBM reforms may not solve every issue in the market, and they do not replace the need for state action. They still matter because they show that PBM oversight has moved from a statehouse issue into the national healthcare-policy conversation.That changes the environment around these lawsuits.

PBM reform is no longer a fringe debate. It has become a bipartisan healthcare issue. Once Congress acts, it becomes harder to argue that PBM oversight is unusual or unnecessary. This may be one reason ERISA litigation becomes even more important to the PBM industry.

If the political momentum is moving toward more PBM oversight, then the legal fight becomes about where the boundaries are drawn. PCMA does not need to defeat every PBM law to change the practical effect of reform. It can try to narrow the parts of state laws that reach network access, preferred pharmacy structures, anti-steering rules, or plan administration.

That is why the recent lawsuits challenging state PBM laws in Illinois and Tennessee are worth watching.

According to PLANSPONSOR, PCMA has again turned to ERISA preemption arguments in challenging those state laws. The details of those laws are not the focus of this article. The larger point is that PCMA is continuing to use ERISA preemption as a central litigation tool even after Rutledge. This is the post-Rutledge strategy in action.

The argument is not that states cannot regulate PBMs. The argument is that some state laws cross the line from regulating PBM conduct into regulating the design and administration of ERISA plans.

For pharmacies, pharmacy associations, and policymakers, the takeaway is practical. Passing a PBM reform law is only the first step. The next fight is often in federal court. That means the drafting matters.

A state PBM law should be clear about what it is regulating and why. If the goal is reimbursement fairness, patient access, transparency, anti-steering protection, or pharmacy network accountability, the statute should be written with the expected ERISA challenge in mind.

This does not mean states should stop acting. It simply means states need to be precise.

The same is true for pharmacy advocates. PBM reform cannot be built only for the legislative hearing room. It also has to be built for the courtroom that may come next.

Taken together, these developments show where the PBM fight is moving. Rutledge gave states room to regulate. Mulready showed that ERISA preemption still has limits to test. Congress has now moved PBM reform into the national healthcare-policy conversation.

For pharmacies, healthcare organizations, and policymakers, this is not an academic issue. The policy momentum around PBM reform is real, but so is the legal risk. Passing a law is only the first step. The next question is whether that law can survive the federal preemption challenge that may follow.