Obama is striking a confident tone in Iowa.
WASHINGTON (CNN) - As Democrat Hillary Clinton appears to be lowering her expectations in Iowa, rival Barack Obama seems to be raising his.
Speaking in Guttenberg, Iowa Friday night, Obama said, "Whoever wins this caucus is likely to win the nomination, and win the presidency."
Earlier in Manchester, the Illinois senator told supporters, "We may just win this thing."
Meanwhile, Clinton – whose autumn lead among Democratic voters in the state has disappeared - said at a press conference Friday morning that Iowa had always promised to be a difficult state for her to win.
"I always knew it would be hard,” she said. “There’s no surprise about that. I don’t live in a neighboring state; I haven’t been here for years.”
Obama represents the neighboring state of Illinois. John Edwards, who posted a surprisingly strong showing in the caucuses in 2004, has maintained a sizeable grassroots organization within the state.
- CNN's Mike Roselli and Alexander Mooney