Check this out. The Washington Post took the prepared notes for GOP vice-presidential nominee Paul Ryan’s convention speech, and set up a page where you can comment on an individual paragraph, watch that segment of video, and call in the fact-checkers.
What’s missing? It would be much, much better if you could see not just the occasional comment from an approved source, but the whole discussion. (Just how to manage that and make it useful is a whole ‘nother kettle of fish, of course.) That would make this a truly conversational tool, and not just a way to weigh in.