In an interview with Barbara Walters, former Vice President Al Gore says the Democrats must identify their differences with President Bush and offer clear and bold alternatives. (ABCNEWS.com) Nov. 15 — Al Gore is back in the spotlight — stumping for Democratic candidates, challenging President Bush's domestic and foreign policy moves — and perhaps testing the waters for another presidential bid in 2004. In his first television interview since his crushing defeat to George W. Bush in the 2000 presidential race, Gore, along with his wife Tipper and two of their daughters, talk with Barbara Walters about the gut-wrenching post-election...