>> there was a late poll by right there's showed ms. clinton had pulled ahead of donald trump. how accurate that is poll? it flies in the face of some of the others. >> well, we've got a long way to go. different polls have different methodologies. this was a reuters poll, polls go up and down. it seemed to track the mood this week of the fact that donald trump struggled with a few things. but you've got to wait until any individual poll, including this 11-point lead for hillary clinton, is confirmed by subsequent ones. the averages of all the polls right now, hillary clinton is ahead about 3 or 4 points. >> john, have a good weekend. rest up. you're going to need it on that beat. john harwood in washington. >>> by the year 2030, the world's population is seen adding another 1 billion people. how to feed those people is a puzzle the agriculture industry is working to solve. along with another problem which is finding qualified workers to fill thousands of highly skilled jobs. mary...