I will apply for a PhD soon. I would be applying to the Politics department, but there is a professor in a different department who holds really interesting seminars on political topics. However, as I said, he is not affiliated at all with this department. How do I ask him / how could I phrase this best?
PS: My question is not whether I can attend his lectures as a guest -I would love to take these seminars for credit, if I can. I just don't know whether that's an option, or whether students from the politics department will be allowed in these lectures/seminars.