How ordinary investors, spurred on by a Reddit message board, took on the big Wall Street funds and sent GameStop share prices soaring. Plus, how President Biden is using the pandemic to try to expand access to health coverage.  Read more:Business reporter Hamza Shaban explains what you need to know about GameStop’s stock price chaos. On Thursday, President Biden signed two executive actions, one of which was designed to expand access to health insurance through the Affordable Care Act and Medicaid. Health-care policy reporter Amy Goldstein on how the action is a direct response to the pandemic. If you value the journalism you hear in this podcast, please subscribe to The Washington Post! We have a deal just for podcast listeners — two years of unlimited access to everything The Post publishes for just $59 total. That comes out to about $2.46 per month. To sign up, go to washingtonpost.com/subscribe