During the 2020 COVID-19 pandemic, the Trump administration replaced career public affairs staff at the Department of Health and Human Services with political appointees, including Michael Caputo, who interfered with weekly Centers for Disease Control scientific reports and attempted to silence the government's most senior infectious disease expert, Anthony Fauci, "sowing distrust of the FDA at a time when health leaders desperately need people to accept a vaccine in order to create the immunity necessary to defeat the novel coronavirus." One day after President Donald Trump noted that he might dismiss an FDA proposal to improve standards for emergency use of a coronavirus vaccine, the Presidents of the National Academies of Sciences and Medicine issued a statement expressing alarm at political interference in science during a pandemic, "particularly the overriding of evidence and advice from public health officials and derision of government scientists".