Dan Diamond is a national health reporter for The Washington Post, focused on accountability, federal agencies and public health. He joined The Post in 2021 after covering the Trump administration for Politico, where he won a George Polk award for investigating political interference in the pandemic response. His investigations into a range of topics, including Trump officials' use of taxpayer-funded charter jets, not-for-profit hospitals' spending and how Congress stripped Pacific Islanders of their health coverage, have also been honored with several journalism awards.