"Soon after Imran began working for Wasserman Schultz in 2005, his two brothers and two of their wives — plus Abbas and another friend — began appearing as IT staffers on the payrolls of other House Democrats. Collectively, the Awan group has been paid $4 million since 2009.

Shortly after the criminal probe was revealed in February, Imran abruptly moved out of his longtime home on Hawkshead Drive in Lorton, Va., and listed it for rent on a website that connects landlords with military families. One of the new tenants — a Marine Corps veteran married to a female Navy Officer — said he found “wireless routers, hard drives that look like they tried to destroy, laptops, [and] a lot of brand new expensive toner.”

The tenants called the Naval Criminal Investigative Service and, not long after, FBI agents arrived together with the Capitol Police to interview them and confiscate the equipment. The Marine spoke on condition of anonymity because of concerns for his wife’s naval career, saying she doesn’t want to be associated with a national security incident.

He believes “there’s no way they could get this far without help” from some of the Democratic members of Congress for whom the brothers worked. Other Democrats have ignored a major security breach because it could look like a “black eye” in that they failed to vet the Pakistanis, he said. "