Update: This week’s latest poll for the Democratic Presidential nomination race in Iowa, commissioned by ABC News and the Washington Post, puts Barack Obama on 30%, Hilary Clinton on 26% and John Edwards on 22%, giving Obama (pictured here with US rapper, Ludacris) a 4% lead .

Though the polls have vascillated in Iowa, this latest poll appears to suggest that Obama has drawn support away from Edwards, whose rating has dropped 3 points amongst Iowa Democrats since July, whilst Clinton and Bill Richardson have both flat-lined.

Another interesting statistic to come out of this poll is that just 50% of those polled believe Clinton is willing to speak her mind and say what she thinks, whilst 76% think the same of Obama.