He’s still simmering over losing the election, so he wants to seem relevant. I’m sure zero asked him to go. You know, Juan has to be a good boy and do what this “harmless” poser in the WH asks. It might even give him brownie points he so wants. He isn’t the darling of the MSM any more. Trump has stolen everyone’s thunder right now.
McCain gets his assignments from Soros. But if he has to take them secondhand through Zer0 that must gall him.