

Matthew Bell is a reporter for PRI's The World. He covered the 2004 U.S. presidential campaign and has also filed reports from Belfast, Seoul, Shanghai and Jerusalem.
Democrats opened their national convention in Denver on Monday, where the party will spend four days trying to prove how unified it is -- behind Barack Obama and against John McCain.
That will be something of an exaggeration, though, as about a quarter of Senator Hillary Clinton's backers are vowing not to vote for Obama. And other Democrats are wary about Obama's position on the war in Iraq. He opposed the war from the start. Yet some anti-war Democrats say he's not anti-war enough.