It's very relevant. You thought that Christie's endorsement of Trump would have the same poisonous impact as Graham's endorsement of Rafael. But it's not. It was nothing more than a cheap false equivalency argument that blew up in your face.
It is not false equivalency. Both Christie and Graham are non-conservatives, and in my opinion, both are RINOs. In many ways, not much different than Graham. Why should Cruz be expected to disavow a RINO that supports him and Trump not?
This is more of the Trump campaign of rules for thee but not for me. And in my mind, highlights a personality flaw that starts with Trump and permeates down through his staff and followers.