Robert F. Kennedy Jr. is under fire for upending American healthcare and undermining vaccine science. At a Senate hearing last week, he faced a barrage of criticism from both sides of the aisle. And former leaders of the U.S. Centers for Disease Control and Prevention (CDC) are urging action, warning Kennedy is threatening the health of every American. 

Dr. Mandy Cohen, former CDC Director, joins us to talk about why she and eight other former leaders of the top U.S. health agency are calling for urgent action to protect public health in America. And the fears are being felt by doctors in Canada. Dr. Lynora Saxinger, an infectious disease doctor from Alberta, talks about how she's seeing Kennedy's influence undermine faith in vaccines in her province.