PMP Certification Monitoring and Controlling Test 2

The project charter is complete and the project manager is looking for sponsor approval. At the beginning of a meeting with the sponsor and top stakeholders, the sponsor tells the project manager that they are leaving the company in two weeks and that it would be better to wait for the new sponsor to approve the charter.
The rest of the stakeholders do not want to wait because it will delay the project. During the discussion, the sponsor stops the meeting and asks the reschedule for next week.
What conflict resolution technique is the sponsor using?