Why might voters choose Haley?
One issue where Haley stands out is in foreign policy. Her history as Trump's ambassador to the United Nations gives her experience, and her policy positions place her at odds with the frontrunner. The Republican Party has followed Trump's lead in recent year's and become more isolationist. But Haley has taken a more traditional stance and has called for continuing aid to Ukraine, an issue that's becoming less popular with her party's voters. But she also has taken a hard line against China and supports continuing aid for Israel, which the Republican base also supports.
—Monica Potts, 538