The U.S. Department of Justice confirmed in court Thursday that it is sharing sensitive voter data with the Department of Homeland Security in a search for noncitizen voters. But a DOJ lawyer denied the department is building a national voter database.

The Justice Department has demanded states provide full copies of their voter lists, including sensitive personal information, such as driver’s license and partial Social Security numbers. It has sued 29 states and the District of Columbia for refusing to turn over the data. At least a dozen other states have provided their lists.

During a hearing in the Justice Department’s lawsuit seeking Rhode Island’s voter data, DOJ attorney Eric Neff said the information would be shared with Homeland Security. U.S. District Court Judge Mary McElroy had asked whether the Justice Department could send the list to Homeland Security with instructions to search for noncitizens.

“Yes, and we intend to do so,” Neff said.

He added that the Justice Department and Homeland Security already have a “use agreement” in place for such sharing.

Three federal judges have so far rejected the Justice Department’s demands for state voter data, and no judge has sided with the department. DOJ has appealed those decisions and oral arguments are scheduled for later this spring after the Trump administration pushed for quick decisions ahead of the midterm elections.

The Justice Department has said it needs the voter data to determine whether states are complying with federal voting rights laws that require states to regularly update and clean their lists. The department has voiced particular determination to root out non-citizen voting, which is extremely rare.

In September, Homeland Security told Stateline in an unsigned statement that the Justice Department was sharing voter data with the agency in a collaborative effort.

But Neff’s courtroom statement on Thursday appeared to mark the first on-record acknowledgment of the data sharing. CBS News also reported on Thursday that the two agencies were nearing a final agreement on sharing voter data for immigration and criminal investigations.

The Justice Department and Homeland Security didn’t respond to requests for comment from Stateline.

In recent weeks, a Justice Department lawyer sidestepped a question about whether voter data would be used for immigration purposes. On March 3 during a hearing in a lawsuit over Minnesota’s voter roll, U.S. District Court Judge Katherine Menendez asked DOJ lawyer James Tucker whether there was intention to use the data for immigration enforcement.

“Not to my knowledge, no, your honor, not with the data we are getting,” Tucker said, according to a transcript. But he added that some federal prosecutors were working with Homeland Security.

During a federal court hearing in Maine on Thursday, Tucker said the Justice Department was not creating a national voter database. At the same time, he didn’t rule out voter data being checked against federal databases.

“Again, that’s something that’s been routine the United States has done in the past,” Tucker said.

Since President Donald Trump took office last year, Homeland Security has refashioned an online program previously used to verify whether immigrants qualified for government benefits into a tool that can verify U.S. citizenship. Called SAVE, the program is capable of checking millions of voters against federal databases for citizenship information.

DHS has encouraged states to run their voter lists through the program. Some Democratic state election officials have expressed concerns about the program and point to instances where SAVE has wrongly flagged a voter as a potential noncitizen.

“They are initiating litigation in states all around the country, seeking the same information in sort of this cookie-cutter way,” Jonathan Bolton, an attorney in the Maine Attorney General’s Office, said during Thursday’s federal court hearing in Maine.

“Which suggests that the purpose is not to investigate specific concerns about specific states, but it is to compile this sort of national voter registration database,” Bolton said.

Bolton was representing Maine Democratic Secretary of State Shenna Bellows in the Justice Department’s lawsuit for Maine’s voter roll.

Rhode Island Current reporter Alexander Castro contributed reporting. Stateline reporter Jonathan Shorman can be reached at jshorman@stateline.org.