Is there any time limit on each question? And does he have to remain standing during the asking of a question?
Mr Smith: "Blah, blah, blah... {3 more hours of blah} blah"
Senator Q: "Are you saying "Blah3hr?"
Mr. Smith, who in the meantime has peed into the conveniently-located carboy, eaten a sandwich, and drank some water, "Yes, in fact it's even worse than that, blah..."
and they go back and forth for days.