Vinay Prasad, the FDA’s top vaccine and gene therapy regulator, was the target of a right-wing pressure campaign over his handling of drug approvals and past support for Democrats.

WASHINGTON — Vinay Prasad is returning to the Food and Drug Administration to resume his role overseeing vaccine, gene therapy, and blood product regulation. “At the FDA’s request, Dr. Vinay Prasad is resuming leadership of the Center for Biologics Evaluation and Research,” Health and Human Services spokesman Andrew Nixon told STAT on Saturday.