A former top government vaccine official has filed a whistleblower complaint against the Trump administration claiming that he was demoted for pushing for more evidence regarding hydroxychloroquine, the drug touted by President Trump as a possible remedy for the coronavirus.

Dr. Rick Bright, the former director of the Biomedical Advanced Research and Development Authority, filed the complaint with the Office of Special Counsel Tuesday, according to the Associated Press. Last month, Bright said he was removed from his job as director of BARDA, the agency tasked with finding a coronavirus vaccine, because of his “insistence that the government invest the billions of dollars allocated by Congress to address the COVID-19 pandemic into safe and scientifically vetted solutions, and not in drugs, vaccines, and other technologies that lack scientific merit.”