Federal agents searched the home of Rep. Ilhan Omar, according to a report published Monday.
The search occurred within the 60-day window before the midterm elections.
The Justice Department has historically avoided such investigative steps involving political candidates during this period.
Details about the purpose of the search remain limited. Authorities have not publicly confirmed the reason for the operation.
The timing places the action close to an election cycle when federal law enforcement traditionally exercises caution.
That norm is intended to prevent investigations from influencing voter decisions.
Omar has not issued a public statement in response to the search.
The case continues to develop as officials release more information.
