At any point prior to the 2024 US Presidential Election, will the selected Democrat and Republican nominees engage in a 2 hour or longer debate/discussion?

Fine Print

The nominees must have already been selected by their political party as the chosen nominee for US president. The debate/discussion must be publicized and widely available online. With or without moderation is acceptable. Third party nominees do not count. The debate must actually happen and last for 2+ hours - if scheduled and subsequently cancelled, it does not count. I must be able to credibly validate that the debate occurred. The debates must be by the actual candidates, not their likeness or an AI representation.