I mean, I’m not sure how you can call it anything else:Al Gore, global warming rock star, will grab the media spotlight today before Sen. Barbara Boxer’s Environment and Public Works Committee — and Boxer is using Gore’s appearance to help raise money for her 2010 re-election campaign.In an e-mail sent earlier this month, Boxer asked her supporters to sign an online thank-you card to Gore "for his many years of leadership and hard work," which she plans to give to him...