The House lawsuit and the potential for a new administration that could cut off the payments unilaterally should have been red flags for regulators when insurers were preparing their rate filings for 2017. I noted this in a blog post for the Journal last May.

To maintain a stable marketplace regardless of the uncertainty, regulators should have demanded that insurers price in a contingency margin for their 2017 rates. It appears that Mr. Jones’s office did not even consider doing so. I recently submitted a Freedom of Information Act request to his office requesting documents related to the 2017 rate-filing process, and “whether uncertainty surrounding the cost-sharing reduction payments was considered by the Commissioner’s office in determining rates for the current plan year.” Mr. Jones’s office replied that no such documents exist.

What does that mean? At best, not one of the California Insurance Commission’s nearly 1,400 employees thought to ask whether a federal court ruling stopping an estimated $7 billion to $10 billion in annual payments to insurers throughout the country would affect the state’s health-insurance market. At worst, Mr. Jones—a Democrat running for attorney general next year—deliberately ignored the issue to avoid exacerbating already-high premium increases that could have damaged Hillary Clinton’s fall campaign and consumers further down the road.