PMP Practice: Engage stakeholders by category

Aryan Chattopadhyay is managing a government healthcare records modernization project for Zainab Mwangi Systems. The project is 60% complete when a regional privacy advocacy coalition publicly criticizes the new system's data-sharing protocols, claiming they violate patient confidentiality expectations. The coalition was identified in the initial stakeholder register as 'low power, high interest' but has now gained significant media attention and legislative support. Two state senators have requested project briefings, and the agency sponsor is concerned about potential regulatory challenges. The project team has confirmed the system fully complies with all current regulations. A steering committee meeting is scheduled in three days. What should Aryan do FIRST to address this situation?