CNN anchor Dana Bash challenged Dr. Mehmet Oz on live television over the Trump administration's vaccine messaging amid a record measles outbreak. During a heated exchange on _State of the Union_, Bash questioned whether the administration's stance was contributing to declining vaccination rates, particularly in South Carolina where immunization levels have dropped to 82.5 percent.

Dr. Oz, now CMS Administrator, defended Health and Human Services Secretary Robert F. Kennedy Jr., claiming he had always advocated for measles vaccines. The TV physician argued that Kennedy had been "at the very front" of promoting vaccinations, citing his response to the Texas outbreak. However, Bash countered with evidence from Kennedy's former organization, Children's Health Defense, which had posted anti-vaccine content on social media.

The confrontation highlighted growing concerns about vaccine hesitancy under the current administration. Vaccination rates have fallen below the critical 95 percent herd immunity threshold, with MMR coverage particularly affected. Dr. Oz's defense of the administration's position contrasted sharply with Kennedy's history of promoting vaccine conspiracy theories, including claims about vaccines containing fetal tissue. The exchange underscored the political tensions surrounding public health messaging and the potential consequences for disease prevention efforts across the United States.

Quick Fact: MMR vaccination fell below the 95 percent herd immunity threshold in 2021.