*Blitzer, Ronn (September 8, 2019). [https://www.foxnews.com/politics/mark-sanford-announces-trump-primary-challenge-gop-has-lost-our-way Mark Sanford announces Trump primary challenge: GOP 'has lost our way']. ''Fox News''. Retrieved September 8, 2019. | *Blitzer, Ronn (September 8, 2019). [https://www.foxnews.com/politics/mark-sanford-announces-trump-primary-challenge-gop-has-lost-our-way Mark Sanford announces Trump primary challenge: GOP 'has lost our way']. ''Fox News''. Retrieved September 8, 2019. |