>> dale uses a spreadsheet to keep track of trump's false claims. >> they're all coded. >> these are all new lies? each one is a different lie? >> when he repeats it, i count it again. >> it's just incredible. it's like baseball statistics except if lying were like for hitters what an rbi is. >> listen to this one. >> trump lies about almost everything. every conceivable topic. over six weeks we tracked this summer, it was the economy and trade that had become the number one topic. >> you can't have a $500 billion a year trade deficit. >> the number isexaggerated. >> what is the effect of this barrage of lies? >> trump has created a situation where a lot of people who still trust him are not going to believe people who are trying to give them important, accurate information about their lives. whether that's doctors or scientists who are telling that climate change is a real