During a tense Senate hearing, former public health director Dr. Anthony Fauci repeatedly declined to answer questions by invoking his Fifth Amendment right against self-incrimination. Fauci attributed his decision to what he described as Senator Rand Paul's persistent efforts to prosecute him, including the public disclosure of his personal diary.

Following the hearing, House Republican Chairman Comer signalled that President Biden's pardon of Fauci may lack solid legal footing, suggesting potential further congressional action. The proceedings grew contentious when Fauci's attorney was ejected following disruptions, whilst several Republicans called for contempt of Congress charges.