How do I assign an existing AI Controller to a Pawn?


I have a character that is controlled by an AIController. It spawns well with the Default AI intact and everything. When I possess the character with the player character then unpossess it, it behaves like the AI isn’t assigned to the character, yet the AI still exists in the scene outliner. How do I reassign that AI to the character, or would it be best to delete it and spawn a new controller?