One wonders if he's too stupid to understand the question, doesn't know the answer but can't be seen to not be answering, or if he's just trying to keep the opt

One wonders if he's too stupid to understand the question, doesn't know the answer but can't be seen to not be answering, or if he's just trying to keep the options open. All of the above are scary. But this is not without precedence. The UK chancellor couldn't even answer which tax greggs should be paying.