The Trump administration is building a case to strip Minnesota Rep. Ilhan Omar of her U.S. citizenship and ultimately deport her, according to U.S. officials and people familiar with the probe cited by The Wall Street Journal.

The multipronged inquiry centers on how Omar, who arrived from a Kenyan refugee camp in 1995 and became a citizen in 2000, obtained naturalization.

Authorities are examining her family's immigration records and have issued more than a dozen subpoenas, including to some of her relatives, seeking testimony before a federal grand jury in Minnesota. No lawsuit seeking to revoke her citizenship has yet been filed.

The escalation began Monday, when Homeland Security Investigations agents searched Omar's Washington, D.C. home under what the department called a judicially authorized search warrant.

Agents blocked off the street and removed boxes labeled 'Seized Property Evidence,' taking her cellphone, notebooks, personal computers and passport, according to people familiar with the search. Only Omar and her husband were home at the time.

The Justice Department described the search as part of an ongoing federal criminal investigation into potential immigration fraud, false statements on government documents and a possible criminal conspiracy — suspicions that have not been established as fact.

According to The Wall Street Journal, Homeland Security Investigations examined a similar tip under President Joe Biden but declined to pursue it because investigators lacked evidence of fraud.

The Journal also reported that a nonpartisan congressional watchdog had earlier cleared Omar of wrongdoing over disclosures that overstated her assets, and her father's 2020 death complicates efforts to establish who, if anyone, lied.

Investigators are weighing whether Omar obtained citizenship through her father by being recorded as a minor. If she was 17 when her father applied, she would have qualified automatically rather than needing her own immigration process.

The government cannot simply strip a person of citizenship: the Justice Department would have to sue in federal court and prove she lied in a material way to gain it. Omar's office rejected the investigation as baseless, and The Guardian reports that D.C.

U.S. Attorney Jeanine Pirro said 'several investigations' are underway, including one into her financial disclosures.

The timing has drawn intense scrutiny: the search came roughly three weeks before the November 3 midterms, in which Omar is seeking a fifth term representing Minnesota's 5th District.

Democrats condemned the raid as a 'rogue abuse of power,' and Omar called it 'an attempt to target political enemies and weaponize federal law enforcement,' vowing she would 'not be silenced.'

According to The Guardian, the Justice Department has historically avoided public investigative actions involving a candidate within 60 days of an election.

Omar, the first African refugee elected to Congress and a frequent target of Trump's anti-Somali rhetoric, says the probe is political intimidation.

In the meantime, more than a dozen witnesses face grand jury subpoenas in Minnesota, and The Wall Street Journal reported no one has yet filed suit to revoke Omar's citizenship. PressTV reports that her husband, Tim Mynett, is also under investigation as part of the probe.

Trump told reporters hours after the raid that he had 'nothing to do' with the search, saying it was 'really up to the DOJ.' Omar's re-election race and any court filings will now unfold in parallel.