The woman at the center of the operation, a Chinese national named Fang Fang or Christine Fang, targeted up-and-coming local politicians in the Bay Area and across the country who had the potential to make it big on the national stage.

Through campaign fundraising, extensive networking, personal charisma, and romantic or sexual relationships with at least two Midwestern mayors, Fang was able to gain proximity to political power, according to current and former U.S. intelligence officials and one former elected official.

Even though U.S. officials do not believe Fang received or passed on classified information, the case “was a big deal, because there were some really, really sensitive people that were caught up” in the intelligence network, a current senior U.S. intelligence official said…

Among the most significant targets of Fang’s efforts was Rep. Eric Swalwell (D-Calif.).