Bright, the former director of the Biomedical Advanced Research and Development Authority who was moved to a narrower role at NIH this week, had expressed opposition to the way hydroxychloroquine was being politicized by the president and others in the administration, according to two people familiar with the discussions. Two senior administration officials said he repeatedly clashed with his boss, Robert Kadlec, the HHS assistant secretary for preparedness and response. One person familiar with the situation said Bright’s departure was long discussed among top HHS officials because of dissatisfaction with his job performance.