oi pelley: now hollywood is telling her story. captioning sponsored by cbs this is the cbs evening news with scott pelley. pelley: 36 days before the election, hillary clinton has taken the lead over donald trump. our new cbs news poll out d tonight has clinton up four points. before the first debate last monday, they were tied. 32% said their impression of clinton improved, while 36% said their opinion of trump gotay worse. late today, trump defended his use of the tax code to legally pay as little in taxes as hett could. here s major garrett. i have legally used the tax laws to my benefit. reporter: today in colorado,g donald trump was unapologeticd after the new york times reported he claimed a business those losses could have shielded trump from federal income taxes. for years. i understand the tax laws better than almost anyone. reporter: trump has not released any of his tax returns, and a trump lawyer threatened the times with legal action for unautho