Gore gives strong support to Obama

Former US Vice-President Al Gore made a dramatic debut in the 2008 presidential campaign, delivering a blistering attack on the man who denied him the presidency eight years ago as he endorsed Democratic candidate Barack Obama.

The Nobel Peace Prize laureate pledged on Monday "to do whatever I can" to elect Obama.

The wholehearted support from Gore could add luster to Obama's campaign as he tries to win over Democrats who backed his former rival, Hillary Rodham Clinton. Gore served as vice-president under her husband, President Bill Clinton.