As we all know, Slick Willy said, depends what the definition of "Sex" is.
How Susan Rice and ask something similar to that, "depends on how you define unmasking". Is it really leaking? I would say yes.
I think this will overshadow the Watergate BS. All in the Obama administration will be involved somehow, maybe not Uncle Joe. They would not want Uncle Joe to know anything about this, he'd spill the beans with his world renown loose lips.