WASHINGTON (Reuters) - A fierce attack on President Bush ( news - web sites)'s Iraq policy issued by former Vice President Al Gore ( news - web sites) could help galvanize U.S. opposition to a new Gulf war ( news - web sites) while serving as a launching pad for Gore's probable 2004 presidential campaign, analysts said on Tuesday. In a speech in San Francisco, the defeated 2000 Democratic presidential nominee on Monday laid out a scathing critique of Bush's Iraq policy. Pollster John Zogby said Gore's message was "very well timed." "Gore stepped in just as it appeared that...