Swalwell’s devices were seized at the San Francisco airport on Saturday and agents executed a search warrant at his home a day later, said the person, who was not authorized to publicly discuss an ongoing investigation and spoke on the condition of anonymity.
A message seeking comment was left Thursday with an attorney for Swalwell, who has denied allegations of sexual assault and misconduct.
Swalwell announced his resignation from Congress in April following allegations that he had sexually assaulted a woman twice, including when she worked for him. The San Francisco Chronicle, followed by CNN, first reported the allegations. CNN also reported that three other women alleged various kinds of sexual misconduct by Swalwell, including sending them unsolicited explicit messages or nude photos.
Back in 2023, Swalwell was removed from the Intelligence Committee by then-House Speaker Kevin McCarthy, R-Calif., based on Swalwell's contact with a suspected Chinese spy, Christine Fang.
Fang was reported to have come into contact with Swalwell’s campaign as he was first running for Congress in 2012 and to have participated in fundraising for his 2014 campaign.
Federal investigators alerted Swalwell to their concerns and briefed Congress about Fang in 2015, at which point Swalwell says he cut off contact with her.