Public health expert and Columbia University senior research scholar, Dr. Irwin Redlener, joined Chris Jansing to discuss the scrutiny surrounding the scientific rigor of HHS Secretary Robert F. Kennedy Jr.'s “Make America Healthy Again” report. "If he was working as an academic researcher at any kind of medical school, for example, and put this out, he would've been fired," Redlener said. For more context and news coverage of the most important stories of our day click here: https://www.msnbc.