It certainly appeared spontaneous and made for some great theater on both sides, but the truth is, San Francisco Supervisor Chris Daly had been stoking rumors about Mayor Gavin Newsom's supposed cocaine use for months before his outburst last week at the Board of Supervisors. And for just as long, the mayor and his crew knew it was coming. One of the earliest hints came in March when Daly made it clear over coffee with us that the mayor's private life was fair game in the upcoming election -- including questions about his drinking, his rehab and his affair with...