The Washington Post reports that doubts about HHS Secretary Robert F. Kennedy, Jr. are growing among Republicans. Also, an NBC News poll finds an overwhelming majority of Americans support using vaccines for prevention of disease. Washington Post Congressional Reporter Marianna Sotomayor, Punchbowl News co-founder Jake Sherman and Managing Editor at The Bulwark Sam Stein join Chris Jansing to break it all down. Our next MSNBC Live event is on October 11th in New York City! Buy Tickets now: