Barack Obama has taken the stage, saying, "It's good to be back," in this state that launched his momentum Jan. 3.
He has done so before the results have come from Oregon, a state he is expected to win, but after a tremendous defeat in Kentucky, where he lost by at least 35 percent. He has roused this crowd by saying 15 months ago, when he started his race, cynics and pundits dismissed him: "But the people of Iowa had a different idea."