The country's rapidly ramping up vaccine rollout hits a snag after the FDA and CDC announce they were placing the administration of Johnson & Johnson vaccines on hold due to possible unknown side-effects. David Chalian explains what this means for President Bidens vaccine goals. Plus, Biden's balancing act in the face of a policing crisis, and Nikki Haley does a political about-face as she considers her 2024 presidential run. To learn more about how CNN protects listener privacy, visit cnn.com/privacy