He couldn't do that in a real press conference or confrontational interview. They would ask specific questions about such things as his Xmas Eve in Cambodia, his first PH, his antiwar activites and meetings with the enemy in time of war, etc.
Sure specific questions would be asked and his answer would be the same. He is not answering questions that are based on lies. Next question.
Huh? Are we talking Main Stream Media press conference? You sure about that? ;-)