Thank you for bringing your question to the Community forum! Unfortunately, there isn't a way to completely delete out campaigns. We do this just in case you need to recover a deleted file, we don't want you to be out of luck! I'm sorry if this has caused an inconvenience for you. I can definitely take your feedback, that you'd like to see the campaigns deleted permanently, and get it to the proper channels. Thank you for your understanding, and your valuable feedback.