a new brexit-related attack ad against trump. >> every president is tested by world events, but donald trump thinks about how his golf resort can profit from them. >> when the pound goes down, more people are coming to turnbury. >> the american people care about what is going to happen to their lives, about change. and the issues of brexit, this kind of phony ad doesn't address those things. >> reporter: but clinton's overall message is having an effect. a new nbc/"wall street journal" poll shows her leading trump