Donald Trump remains the overwhelming favourite for the Republican presidential nomination, but Nikki Haley is surging. If the former US president shows any signs of weakness when voting begins next week, her long-shot bid could become a real threat.
As her rivals seek to paint her as a moderate, a flip-flopper or an establishment figure beholden to donors, Nikki Haley has drawn from her time in South Carolina to portray herself as someone with a tea party background who speaks “hard truths” and takes on tough fights.