Federal agents seized the cell phone of Rep. Eric Swalwell at San Francisco International Airport as part of an ongoing investigation into sexual misconduct, according to sources familiar with the matter.
The FBI's involvement and the device seizure mark an escalation in the probe, which has not previously been disclosed publicly.
Details regarding the specific nature of the alleged sexual misconduct or the timeline of the investigation remain unclear. Swalwell's office has not yet responded to requests for comment.
The seizure of electronic devices by law enforcement typically occurs when agents believe the devices may contain evidence relevant to a criminal investigation.