This study is for patients that have been diagnosed with MammaPrint Ultrahigh (MP2) Hormone Receptor (HR) Positive / Human Epidermal Growth Factor Receptor (HER2) Negative Stage II-III breast cancer. The drug being used Durvalumab, Cyclophospharmide, Doxorubicin, and Paclitaxel. The study is being done to compare breast cancer event-free survival between patients randomized to standard of care neoadjuvant chamotherapy alone versus standard of care neoadjuvant chemotherapy concurrent with durvalumab.