If Christie dropped out of the race, he could help Haley in a number of ways. He could give her advice on how to craft her political message effectively, as well as offering her guidance on how to navigate the demands of a presidential race. He could also work on her behalf by helping to build support for her candidacy and connecting her to additional resources or key figures that could be beneficial for her campaign. Additionally, Christie could help Haley by providing direct support through joint appearances and targeted outreach in key demographic areas. Finally, Christie could help Haley by raising visibility for her candidacy through interviews, op-eds, and other public appearances.