Correction: In this podcast, NPR's Mara Liasson discusses what she says was a question asked by Democrats and answered by Alan Dershowitz. It was actually Republican Sen. Ted Cruz who asked the question. — President Trump's legal team shifted its defense strategy during the first day of questions and answers in the Senate. Will there be more changes today? Meanwhile, Republicans are confident that they will have enough votes to block witnesses from testifying. The number of coronavirus cases has now reached nearly 8,000, with more than a dozen countries reporting at least a few cases. What preparations is the U.S. taking to combat the spread of the virus? Also can the Secretary of State Mike Pompeo persuade Britain to overturn its decision to work with the Chinese tech giant Huawei on its 5G infrastructure?