An appropriate response might be...
- How many horizontal pixels on your network’s broadcast format?
- What’s the circulation of the newspaper paying your salary?
BTW, Rubio gave a response in that interview.
Now this I like.
Where did you go to school? Did you graduate? What was your GPA? Have you ever had sex out of wedlock? Are you gay?
These are the kind of questions which the media should be asked. It helps to establish the slant they are going to put on the story?