Developing a strategy for testing was supposed to be a relatively simple part of preparing for the coronavirus in the United States. So what went wrong? Guests: Sheri Fink, a correspondent for The Times reporting on global public health, and Dr. Helen Y. Chu, an infectious disease expert in Seattle. Dr. Chu was part of a research project that tried to conduct early tests for the coronavirus but failed to obtain state and federal support.For more information on today’s episode, visit nytimes.com/thedaily. Background reading: During the early days of the outbreak, when containment would have been easier, the federal government missed a series of chances to ensure more widespread testing.After weeks of playing down the potential effects of the coronavirus, President Trump proposed an emergency relief package to bolster the economy — one that has been met by bipartisan opposition.The number of known U.S. cases of coronavirus infection has passed 1,000, with the virus found in every region of the country. Universities continue to close classrooms. Here are the latest updates on the outbreak.