The White House today acknowledged the U.S. is unlikely to reach President Biden’s goal of vaccinating 70% of Americans by July 4. But meeting this goal is particularly urgent in the face of the Delta variant of COVID-19, which is highly contagious and expected to become the dominant strain in the U.S. in a matter of weeks.

Dan is joined by Former CDC director Tom Frieden to discuss who is most vulnerable to this variant, what it means for vaccine makers, and what it tells us about our future living alongside this virus both short- and long-term.