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. Patients are expected to be in the study for XXmonths.