As the race for the White House enters its final days, HardTalk visits Washington for a special series looking at the Presidential election. Neoconservatives are facing difficult times - the current economic crisis has tested their faith in deregulated capitalism and there are deep concerns about America's military commitments overseas. Stephen Sackur talks to political analyst and commentator William Kristol, one of the most influential of the 'neocons', and asks if the American dream is on the brink of disaster.