>> you work hard. you pay your taxes. so why didn't donald trump pay his? he claims he's worth $10 billion. but a new report shows he may not have paid any federal taxes for almost 20 years. >> he didn't pay any federal income tax. if he's paid -- >> that makes him smart. >> if he thinks that makes him smart what does he think of you? >> how stupid are the people of the country? >> i'm hillary clinton -- >> well, if you're a trump