*[https://www.cnn.com/2019/03/06/politics/rand-paul-bill-cassidy-vaccines/index.html GOP senator defends mandatory vaccinations after Paul says they're inconsistent with liberty]. ''CNN''.</ref> | *[https://www.cnn.com/2019/03/06/politics/rand-paul-bill-cassidy-vaccines/index.html GOP senator defends mandatory vaccinations after Paul says they're inconsistent with liberty]. ''CNN''.</ref> |