So in awe of my colleagues @alexismadrigal and @yayitsrob who wrote this bracing and clarifying piece in the middle of the night. I don't know how they do it.

As @alexismadrigal and @yayitsrob report, even the best genetic tests are unlikely to catch infections within two days, making it quite likely he was infected before the debate, even if he was pre-symptomatic and less contagious.

The gravest of what-ifs has become a “what now?”: President Trump’s COVID-19 diagnosis will intensify a wide-reaching global crisis, @alexismadrigal and @yayitsrob write

Donald Trump’s COVID-19 diagnosis raises a chain-reaction question: When, exactly, was the president infected? And who else might be sick? @alexismadrigal and @yayitsrob report

"Trump is 74 years old, which puts him right on the cusp of the CDC’s riskiest age brackets for COVID-19 outcomes." Read @alexismadrigal and @yayitsrob on the possible consequences of Trump's positive coronavirus test

Trump was never going to protect the country from the virus. But ultimately he could not even protect himself.

"The president’s diagnosis will intensify a wide-reaching and dangerous global crisis. As the coronavirus pandemic has killed more than 206,000 Americans, Trump has spent months.... vacillating on proven public-health policies." A must-read