Lawyers for Representative Ilhan Omar wrote to federal prosecutors on Friday demanding the prompt return of everything agents took from her Washington home, along with copies of any video and audio recorded inside it, The Daily Wire reported.

Homeland Security agents carried out the search earlier this month under a warrant signed by a federal judge. The Wall Street Journal reported that they took her cellphone, her notebooks, her personal computers and her passport.

Her attorneys say there is nothing there to find. “There is no legitimate basis for any suggestion that she has violated any law concerning her citizenship status,” they wrote. They called the investigation “vindictive, retributive, and politically motivated,” and said it targets one of the president’s chief congressional critics.

Their second argument is about the calendar. Justice Department practice discourages overt investigative steps against a candidate in roughly the sixty days before an election, and the search landed inside that window with the midterms three weeks out. Her lawyers say the department broke its own rule.

The department’s answer was four sentences short of a denial. “Our attorneys and law enforcement partners complied with all court orders and legal obligations, as they always do,” spokeswoman Emily Covington told ABC News.

Tom Homan, the border czar, was asked about the strength of the case and gave an answer worth quoting carefully, because of how much of it is secondhand.

He said he would not get ahead of the FBI or Homeland Security Investigations, but that he had been told they have a strong case and that the evidence would lead where it leads. He also said he does not have the specifics of that evidence. If someone lies during naturalization, he said, there is a process to denaturalize them, and the government has done it before.

That is a man relaying what he was told, by his own description, and it is not evidence of anything.

What the investigation actually covers has not been made public. The sealed affidavit behind the warrant is the document that would say, and it has not been released. Reporting has pointed to questions about whether her birth year was misstated on immigration paperwork when her family fled Somalia in the late 1990s, and subpoenas have reportedly gone to family members.

One thing about the warrant is worth being precise on, because it will be argued about in both directions this week. A federal judge had to find probable cause that evidence of a crime would be found in the house before signing it. That is a real finding and it is not a small one. It is also not a finding that she committed a crime.

No charges have been filed. Omar denies wrongdoing and says the investigation is political.