Stars keep lining up for Proposition 87, a ballot measure that seeks to tax California's oil production to help finance alternative fuel development. The Yes on Prop. 87 campaign started airing a television commercial Monday featuring Bill Clinton that's cobbled together from a speech he gave at a rally in support of the initiative last week at UCLA. Clinton, a popular figure in heavily Democratic California, now joins a list of other big names who have come out in support of the measure. Actress Geena Davis appeared with Clinton at Friday's rally, and Julia Roberts stumped for the initiative at...