Nikki Haley, former U.N. ambassador and governor of South Carolina, has been gaining traction in the 2024 Republican presidential primary. But can she catch up to the front-runner, former President Donald Trump? WSJ’s Molly Ball breaks down Haley’s growing momentum. Further Reading: -Debate Performances Fuel Haley’s Rise in GOP Nomination Race  -Nikki Haley’s Challenge: Keep Anti-Trump GOP Vote, Add Some Trump Backers  Learn more about your ad choices. Visit megaphone.fm/adchoices