The first time Kevin Johnson was involved in the National Basketball Association draft, he was passed over by the Sacramento Kings. Now mayor of Sacramento, Johnson will represent the Kings at the NBA draft lottery Tuesday. The lottery will be televised on ESPN during a pregame show just before Tuesday night's playoff game in Dallas, when the Oklahoma City Thunder takes on the Dallas Mavericks in game one of the Western Conference finals. The draft lottery portion of the show, which determines the order for the NBA draft June 23, could begin as early as 5:10 p.m. Pacific time. In 1987, Johnson was drafted by the Cleveland Cavaliers, who got the seventh pick in the draft. The Sacramento K