Among the concerns officials had about becoming more aggressive with China in January was that they would lose access to information about the virus, and that pharmaceutical supply chains could be cut off https://www.nytimes.com/2020/04/11/us/politics/coronavirus-trump-response.html

At the time, the White House was consumed by the impeachment battle and the signing of Phase One of a trade deal with China, something the president and some aides had seen as crucial to his re-election effort https://www.nytimes.com/2020/04/11/us/politics/coronavirus-trump-response.html