- Trump hopes to boost Bishop in North Carolina rally ahead of special electionCNN
- More GOP challengers line up against Trump, more states cancel their primariesNBC News
- Trump mocks Sanford for 2009 affair after GOP primary challenge announcedFox News
- Mark Sanford Is the Biggest Republican Threat to TrumpThe New York Times
- The Difference Between Never-Trump and Post-Trump RepublicansBloomberg
- View full coverage on Google News