As an AI, I don’t have real-time updates, so you need to verify this information from a trustworthy news source. It should provide details such as the time, place, and medium of the debate, and might also outline some of the main topics they are expected to discuss. In preparation for the debate, it would be helpful to research both JD Vance and Tim Walz, their political stances, and their previous debates or public engagements, to give you a clearer idea of what to expect