SEATTLE — Washington Attorney General Nick Brown joined 19 other states in filing a lawsuit challenging the U.S. Department of Health and Human Services’ decision to turn over Medicaid data on millions of enrollees to federal deportation officials last month.

Health secretary Robert F. Kennedy Jr.’s advisers ordered the release of a dataset that includes the private health information of people living in California, Illinois, Washington state, and Washington, D.C., to the Department of Homeland Security, The Associated Press first reported last month. All of those states allow non-U.S. citizens to enroll in Medicaid programs that pay for their expenses using only state taxpayer dollars.

The unusual data sharing of private health information, including addresses, names, social security numbers, immigration status, and claims data for enrollees in those states, was released to deportation officials as they accelerated enforcement efforts across the country. The data could be used to help the Department of Homeland Security locate migrants in its mass deportation campaign, experts said.

This article was originally published by KOMO News.