you've also seen readouts issued by the treasury department of conversations that secretary lew has had with chinese officials in recent weeks. most of those conversations have focussed on the shift in the exchange rate. and this is consistent with the case we have long made to china, that they should continue to pursue financial reform to increase exchange rate flexibility and to move rapidly toward a more market-determined exchange rate system. >> tonight, bill o'reilly began the discussion of the subject by admitting that he, bill o'reilly has no idea who the president of china is, and then bill o'reilly treated donald trump as fox news china expert. >> why do you think the stock market's going down?