Fang Fang, also known as Christine Fang, embedded herself in Bay Area politics and slept with two Midwestern mayors as part of a yearslong Chinese intelligence campaign, according to an Axios investigation.

She also fundraised for Reps. Eric Swalwell and Tulsi Gabbard, both of whom ran in the 2020 Democratic presidential primary, Axios said.

According to the outlet, Fang returned to China in mid-2015 amid an FBI investigation into her activities. She has not returned to the US since.

Fang's story shows the lengths that Beijing goes to influence American politics — getting cozy with politicians early on in their careers so it can influence them later on.

Axios' story was published a day after President Donald Trump retweeted a video that purported to show a Chinese professor saying: "We have people at the top of America's core inner circle of power and influence."