The Trump-endorsed Dr. Oz recently won the Republican Senate primary in Pennsylvania. One reason the doctor is so popular, despite the many critics who say he promotes unscientific therapies and cures, is his many appearances on Oprah Winfrey's long-running daytime talk show. Kellie Jackson, historian, associate professor of African Studies, Wellesley College and host and executive producer of the Oprahdemics podcast, and Leah Wright Rigueur, associate professor of history, Johns Hopkins University and co-host of the Oprahdemics podcast, talk about Oprah's role in giving Dr. Oz a platform, what he became and if she has any responsibility to speak out.

→ EVENT: And you can see Professors Jackson and Rigueur at an event as part of Tribeca Film Festival next Wednesday, the 15th, at 5:30pm at SVA. Special guest is Wesley Morris of the NYT, and they'll be talking about Oprah and film. Details on their website us.mimecast.com/s/BgyLCpYqJRH9RKR6hGfJBZ?domain=oprahdemics.com">oprahdemics.com.