Robert F. Kennedy Jr., the secretary of Health and Human Services, told Congress that he’s directed the Food and Drug Administration to review regulations around the abortion pill mifepristone, outraging reproductive rights advocates after he cited a flawed study on the widely used medication.

Kennedy Jr., one of the nation's most publicly recognized vaccine skeptics, took a softened approach on vaccines when he answered questions before a House committee Wednesday morning, saying, "I don't think people should be taking medical advice from me.