COVID lab leak was 'most likely' cause of pandemic, says Dr. Marc Siegel

Fox News senior medical analyst Dr. Marc Siegel joins 'Fox & Friends' to discuss the CIA's COVID lab leak theory gaining traction and RFK Jr.'s  confirmation hearing for HHS. 

Fox News senior medical analyst Dr. Marc Siegel joins 'Fox & Friends' to discuss the CIA's COVID lab leak theory gaining traction and RFK Jr.'s confirmation hearing for HHS.