Fauci invokes Fifth at Senate hearing as Covid origins row flares again

The decision, at least for now, shielded Fauci from answering questions that could expose him to accusations of lying under oath. Though he received a pardon in early 2025 from Democratic President Joe Biden, some Republicans pursuing a yearslong campaign for his arrest had suggested he could still face charges for any perjury committed during Wednesday’s hearing.

The scientist, who helped lead the nation’s COVID-19 response, was subpoenaed to testify under oath by Republican Sen. Rand Paul of Kentucky, who has long had an antagonistic relationship with Fauci.

In response to angry, sometimes mocking, questions from Republican senators, Fauci declined to answer more than 100 times, injecting new drama into partisan divides that have festered for years about the origins and handling of the pandemic. Fauci himself has become a polarizing figure, even receiving death threats that prompted him to seek security.