Anthony Fauci, the former director of the US National Institute of Allergy and Infectious Diseases, repeatedly invoked his Fifth Amendment right against self-incrimination rather than answer substantive questions during a fresh, tense session of the Senate Homeland Security and Governmental Affairs Committee, chaired by Republican Rand Paul. Fauci's refusal to engage left Paul frustrated but undeterred, marking an escalation from earlier hearings where the pair traded heated exchanges over Fauci's handling of the pandemic response and the origins of COVID-19.

The hearing builds on long-running Republican efforts to hold Fauci accountable, with Paul alleging that his support for gain-of-function research had been "extensive and long-standing." Other committee members, including Florida senator Ashley Moody, also pressed Fauci for accountability, while Paul had previously cautioned him against lying to Congress about his role in the pandemic. The story remains developing, with Fauci's pleading the Fifth representing the most significant new development in this ongoing standoff.