Homeland Security Agents Search Home of Rep. Ilhan Omar The search takes places within the 60-day window of the midterm elections, when the Justice Department has historically avoided such investigative steps related to political candidates. The court-approved search of her Washington-area home comes after Department of Homeland Security officials said in recent months that they were investigating Ms. Omar, a Democrat, over her family’s immigration paperwork. More recently, some federal investigators have sought to investigate other issues, such as Ms. Omar’s finances, campaign funds and interactions with a foreign citizen, as The New York Times previously reported. The three people who described the execution of the search warrant spoke on condition of anonymity because they were not authorized to discuss it. A Justice Department spokeswoman said that Homeland Security Investigations agents — a part of Immigration and Customs Enforcement — executed a judicially authorized search of a home in the Washington area, as part of an “ongoing federal criminal investigation.” The spokeswoman declined to comment further. Ms. Omar has long said that suggestions that she and her family committed immigration fraud were false and politically motivated. “I will say it again so it’s as clear as possible: I’m not at all worried about these investigations, because they are complete shams,” she wrote in a fund-raising email in September. In early September, Markwayne Mullin, the Homeland Security secretary, said his department was investigating issues surrounding Ms. Omar and her family’s immigration to the United States, and suggested the end result could be deportation.