 Bull represented her home state of Delaware at the Miss USA 2015 where she became the first woman from her state of Delaware to place in the Top 15, becoming the last state to ever place in the competition effectively ending the "Delaware Curse" and eventually finished in the Top 11.The eventual winner was Olivia Jordan of Oklahoma.During the pageant she and Miss Alaska also made history by becoming the first two delegates to tie for Miss Congeniality.