Sen. Hillary Rodham Clinton is expected to win Kentucky today, and Sen. Barack Obama should win Oregon.
Clinton will celebrate tonight in Kentucky, but Obama won't be in Oregon.
Obama will appear at a rally in Iowa, coming full circle from where he started with an upset win in the Iowa caucuses on Jan. 3.
Clinton may still be fighting on for the Democratic nomination, but Obama's appearance in Iowa is serving notice that he's ready for his next challenger -- Republican Sen. John McCain.
-- John Guerriero

