Iowa a Key Test for Democrats« Thread Started on Oct 6, 2007, 11:27pm » --------------------------------------------------------------------------------Iowa a Key Test for DemocratsBy Dan Balz and Alec MacGillisWashington Post Staff Writers Sunday, October 7, 2007; Page A06 read at source> http://www.washingtonpost.com/wp-dyn/co ... CORALVILLE, Iowa, Oct. 6 -- From the high altitude of national polls, the race for the Democratic nomination may seem a potential runaway for Sen. Hillary Rodham Clinton (N.Y.). From ground level in the state with the nation's first presidential caucuses, a far different reality exists. Here Clinton's path remains strewn with obstacles. Iowa has become ground zero in the Democratic race. The results here could instantly change the dynamic of what has been a campaign marked elsewhere by Clinton's relentless march forward. Here the Democratic front-runner faces stiff challenges not only from Sen. Barack Obama (Ill.) but also from former senator John Edwards (N.C.).