The Justice Department has issued subpoenas to members of Rep. Ilhan Omar’s family as part of an ongoing investigation involving the Minnesota Democrat’s immigration history, marking a new development in a probe that has drawn accusations of political retaliation from Omar and other Democrats.

The subpoenas follow a search Monday at Omar’s Washington-area residence conducted by agents with Homeland Security Investigations under a court-authorized warrant. Federal officials have not publicly disclosed the full scope of the investigation or specified what evidence investigators are seeking.

Omar condemned the search, accusing President Donald Trump’s administration of using federal law enforcement to intimidate political opponents.

“For ten years, Trump has targeted me with baseless lies and smear campaigns,” Omar wrote on social media Monday. “This is just the latest escalation in his campaign of political intimidation. I will not be silenced.”

The investigation comes after months of public comments from Trump administration officials about allegations involving Omar’s immigration history. Homeland Security Secretary Markwayne Mullin said last month that investigators were examining, in part, whether Omar had provided false information on immigration forms, adding that “something’s going to happen.”

Omar, who was born in Somalia and later became a naturalized U.S. citizen, has repeatedly rejected allegations concerning her immigration history. The Justice Department has not publicly announced criminal charges against her related to the investigation.

Trump has frequently criticized Omar over her immigration positions and opposition to his administration’s policies. On Monday, he said he had “nothing to do” with the search while describing the congresswoman as “totally crooked, personally.”

The investigation has also triggered criticism from Democratic leaders, who argue that the timing raises concerns about political interference just weeks before the Nov. 3 midterm elections.

House Minority Leader Hakeem Jeffries of New York and other Democrats condemned the search, while Rep. Jamie Raskin of Maryland, the top Democrat on the House Judiciary Committee, characterized the action as political harassment. Raskin also questioned whether the timing was consistent with longstanding Justice Department guidance on investigative steps that could influence elections.

Department guidance has traditionally cautioned against overt actions intended to affect an election. However, the existence of a court-authorized search warrant does not, by itself, establish that an investigation is politically motivated.

Vice President JD Vance has also previously accused Omar of immigration fraud. The administration has maintained that federal authorities are conducting an ongoing criminal investigation, but officials have not publicly outlined the evidence underlying the inquiry.

Grand jury subpoenas can be used to obtain documents or testimony during an investigation. Their issuance does not, by itself, establish wrongdoing by the people who receive them or those connected to the investigation.

For now, the Justice Department has not publicly detailed the evidence sought through the family subpoenas, and no criminal charges against Omar have been announced in connection with the probe.