dublin. he insisted staying at his boss' resort made sense. he has family ties to that town. a primary challenge against president trump. former south carolina governor mark sanford is the third republican trying to unseat his party's leader. bill weld and joe walsh have already declared. sanford is a long-time deficit hawk. he is challenging the president and his own party over what he considers reckless spending. >> as a party, we've lost our way. the president has called himself the king of debt. has a familiarity and comfort level with debt that is ultimately leading us in the wrong direction. >> under president trump, the national debt has soared from 19.9 trillion, to $22.5 trillion. the congressional budget office