Sanford says he is launching primary challenge against Trump - CNN
- Sanford says he is launching primary challenge against Trump CNN
- Mark Sanford announces Trump primary challenge: GOP 'has lost our way' Fox News
- Trump's Challengers Face Roadblocks In Primaries And Caucuses NPR
- Former S.C. congressman Mark Sanford announces Republican primary challenge against Trump The Washington Post
- Mark Sanford announces GOP presidential bid: ‘We have lost our way’ POLITICO
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