Sharp divisions over the war in Iraq broke out last night among the candidates seeking the Democratic nomination for the 2008 US Presidential race.
The debate took place in New Hampshire, which is one of the early primary states.
Former vice-Presidential candidate John Edwards wasted little time in last night's debate before attacking Senators Hillary Clinton and Barack Obama for their voting records on the war in Iraq.
Senator Edwards accused the two of a lack of leadership on the issue.
Senator Obama replied that Edwards was four and a half years late in showing leadership on the War and Senator Clinton again defended her decision at the time to authorise the war.
Senator Clinton is the lead candidate in national polls of Democratic and independent voters but in early primary states like New Hampshire the competition is more intense.
Candidates also clashed on healthcare policies and Darfur but the war in Iraq was by far the most contentious issue.
The race to win party nominations has begun much earlier than ever before with candidates already running extensive campaigns.
The absence of an incumbent and the move by some states to hold their primaries earlier than is usual are factors in making this a long campaign.
Republican candidates will hold a debate tomorrow night.