As Iowans kick off the unusually tight presidential nominating contest tonight, they will offer the first test of whether a populist message can resonate in the 2008 campaign.

In the frantic closing days, as candidates have touted their résumés and needled their opponents, two leading contenders from each party -- Democrat John Edwards and Republican Mike Huckabee -- have ramped up their anticorporate, anti-Wall Street rhetoric. Read More