Geopolitical tensions are foiling efforts to get to the bottom of how COVID-19 originated.
Why it matters: Insights into how COVID-19 began can help us prevent future pandemics — especially if it involved any kind of leak or accident at a virology lab.
Democratic leaders struck an agreement with Sen. Joe Manchin (D-W.V.) on emergency unemployment insurance late Friday, clearing the way for Senate action on President Biden's $1.9 trillion stimulus package to resume after an hours-long delay.
The state of play: The Senate continued to work through votes on a marathon of amendments overnight into Saturday morning.