Bonnie Reiss, a longtime aide to Arnold Schwarzenegger, has been named to the board of directors of a company that owns several casinos in Nevada and has a major interest in the Hollywood Park card club. Reiss' connection with Pinnacle Entertainment could provide a line of attack for Schwarzenegger's political rivals. The candidate has been attacking Lt. Gov. Cruz Bustamante and state Sen. Tom McClintock (R-Thousand Oaks) over the campaign contributions they receive from Indian tribes that run casinos. Pinnacle's casinos and card clubs compete with the tribal casinos for gambling business. A spokesman for Schwarzenegger denied any conflict. "Mr....