Taxpayers were overcharged for patient meds. Then came the lawyers.

Mar. 21—Stateline's Shalina Chatlani examined the health care system in Mississippi as a part of The New York Times' Local Investigations Fellowship.

In 2018, when Mike DeWine was Ohio's attorney general, he began investigating an obscure corner of the health care industry.

He believed that insurers were inflating prescription drug prices through management companies that operated as middlemen in the drug supply chain. There were concerns that these companies, known as pharmacy benefit managers, or PBMs, were fleecing agencies like Medicaid, the government-run health insurance program for the poor.

Three years later, after DeWine, a Republican, became governor of Ohio, the state announced an $88 million settlement with one of the nation's largest insurance companies, Centene.

The case led to a nationwide reckoning for the company and its pharmacy benefit management program, as attorneys general in one state after another followed Ohio's lead, announcing multimillion-dollar settlements and claiming credit for forcing Centene to reform its billing practices.

On the surface, it appeared that these settlements, which now total nearly $1 billion, were driven by state governments cracking down on a company that had ripped off taxpayers.

But a New York Times investigation, drawing on thousands of pages of court documents, emails and other public records in multiple states, reveals that the case against Centene was conceived and executed by a group of powerful private lawyers who used their political connections to go after millions of dollars in contingency fees.

Haley Barbour The Centene case was organized by at least four law firms, several with close ties to former Mississippi Republican Gov. Haley Barbour. Rogelio V. Solis/The Associated Press

The lawyers were first hired in Ohio, without competitive bidding. Then, they gathered evidence against Centene of questionable billing practices across the country.

Using information they acquired from Centene and other sources, they negotiated with the company to set the basic framework of an agreement that could be applied in other states. With that in hand, they approached attorneys general in multiple states and made a compelling offer: hire them, at no direct cost to taxpayers, and recoup millions of dollars Centene had already set aside.

So far, the lawyers have been awarded at least $108 million in fees.

The Centene case is just one example in a thriving industry that allows private lawyers to partner with elected attorneys general and temporarily gain powers usually reserved for the government. Under the banner of their state partners, these lawyers sue corporations and help set public policy while collecting millions of dollars in fees, usually based on a percentage of whatever money they recoup. The practice has become standard fare in the oversight of major industries, shifting the work of accountability away from legislators and regulators to the opaque world of private litigation.