For Nikki Haley, a win in Iowa doesn’t necessarily mean a win in the state’s Republican presidential caucuses. “The way I look at it, we just need to have a good showing in Iowa,” the former South Carolina governor said Friday in response to a question during a town hall event in Sioux City.

In her first campaign stop since Wednesday’s heated Republican debate, Ms. Haley suggested that fierce criticism from her opponents continued to not be worth her time.