Former National Institute of Allergy and Infectious Diseases Director Dr. Anthony Fauci may face criminal charges following his refusal to respond to more than 100 questions during a recent Senate hearing concerning his management of the COVID-19 pandemic. The dispute emerged during Fauci’s testimony before the Senate Homeland Security and Governmental Affairs Committee, chaired by Republican Sen. Rand Paul of Kentucky, who has been a vocal critic of Fauci.

Senate Republicans are considering a vote to refer Fauci for contempt of Congress, a legal offense that applies when an individual summoned by Congress declines to provide documents or answer questions. However, congressional authorities cannot directly initiate prosecutions; instead, any contempt referral must be approved by a committee and the full Senate before being forwarded to the U.S. Department of Justice for potential criminal action.

Given the Senate’s slim majority, advancing such a referral would likely require bipartisan support to reach the 60-vote threshold. The U.S. Attorney’s Office in Washington, led by Jeanine Pirro, a known ally of former President Donald Trump, would then review the matter to determine whether to pursue an indictment.

To secure a conviction, prosecutors would need to demonstrate that Fauci willfully declined to answer questions that were relevant to the Senate’s investigation. Fauci, however, may encounter legal defenses, including claims based on constitutional protections. His legal team could argue that Fauci’s refusal invokes the Fifth Amendment right against self-incrimination. This privilege would protect him from answering questions that might expose him to criminal liability.

Adding complexity to the case, Fauci received a presidential pardon from former President Joe Biden covering all potential offenses up to January 2025. While this pardon does not apply to any actions that may have occurred after Biden’s administration, it raises unresolved legal questions regarding whether a pardoned individual can legitimately withhold testimony before Congress about conduct covered by the pardon.

Legal experts note that courts have yet to clarify this specific issue, and it would likely need to be settled before any trial could proceed. Additionally, obtaining an indictment may prove challenging as grand juries in Washington have historically been reluctant to approve charges in politically sensitive cases.

Fauci has publicly denounced Sen. Paul’s attempts to pursue criminal charges, describing them as part of a broader campaign against him. The ongoing dispute sets up a significant test of congressional authority to compel testimony and the boundaries of legal protections afforded to former government officials.