Kentucky Congressman John Yarmuth, who's a Barack Obama superdelegate, said he wasn't surprised by Senator Clinton's margin of victory in Tuesday's primary, given that Obama did not campaign heavily here.Yarmuth expects Obama to sew up the nomination in time to organize an effective general election campaign against John McCain.He was pleased with Obama's strong showing in Louisville and other urban areas."He will be a very strong candidate in Louisville and I think throughout the state in the fall, and I'm encouraged mostly by the great turnout in the state because this is really what's important when you look at the turnout being three orfour times what the Republicans have turned out in the primary," Yarmuth said.Yarmuth says he expects Obama to aggressively compete for Kentucky's electoral votes in the fall.