I gave him my mission notes when he relieved me of duty. There was quite a lot of information -- I hope it'll be of some use for him.

[ Kakashi knows that situations like this can be a bit tricky, especially since Kushina isn't just any shinobi -- she's also Minato's wife. But for Kakashi, Minato was always a hero, someone he looked up to, who deserved his respect. As Hokage, he deserved the utmost. ]