As Republican presidential hopefuls prepare for Tuesday night’s debate, South Carolina Governor Nikki Haley has a lot to prove. This will be the fourth debate since the field of Republican candidates first met at the Ronald Reagan Library in Simi Valley, California. Polls have placed Haley in the middle of the pack of hopefuls alongside Ohio Governor John Kasich, former Arkansas Governor Mike Huckabee, and former Hewlett-Packard executive Carly Fiorina. As the debate approaches, Haley is seeking to break out from the pack and make her presence felt as the field continues to narrow. With recent polls showing a surge in support, Haley hopes that she will be able to capitalize on her momentum by coming away from the debate a winner. Haley has been able to present herself as a mainstream moderate candidate, which sets her apart from many of the other GOP hopefuls. She has avoided hardline positions on immigration and same-sex marriage, and has instead emphasized economic growth and job creation. On the other side of the coin, Kasich has presented himself as a more traditional Republican. He has emphasized his record of fiscal responsibility in Ohio, as well as his conservative social stances. Huckabee has been able to position himself as an experienced conservative leader. He has highlighted his record as governor of Arkansas, as well as his strong support for a balanced budget and social policies. Finally, Fiorina has been able to cast herself as a successful businesswoman. She has sold her experience in the tech world as a strong asset in her potential presidency. These four candidates will face off on Tuesday night, and all of them have something at stake. While it is impossible to predict how the debate will turn out, it is certain to be an exciting and lively affair. It will be interesting to see how Haley does in comparison to her rivals. If she can win over the audience and break from the pack, she might just be on her way to a breakout moment.