A federal investigation has led to the brief detention of Eric Swalwell, during which his phone was seized at an airport. This development comes four months after Swalwell ended his bid for governor. At that time, he denied allegations of sexual assault and misconduct.

Further details about the federal investigation and the recent detention are available from the source. The seizure of Swalwell's phone is a notable event in the ongoing investigation.

The source provides more information about the latest developments in the federal investigation and its connection to Swalwell's past actions.