"I think I'm in a position to bring about the changes that people want," Obama said in an interview with The Associated Press.
Obama said the dominant theme he is hearing from voters is weariness with Washington-style wrangling.
"I admire Bill Clinton, I think he did a lot of fine things as president and he's a terrific political strategist," the Illinois senator said. "What we're more interested in is in looking forward, not looking backward. I think the American people feel the same way. They are looking for a way to break out of the harsh partisanship and the old arguments and solve problems."
In the interview, Obama said his campaign is based on change and his history shows he can be an agent of change.
"Change can't just be a slogan," Obama said. "Change has to mean that we're not doing the same old thing that we've been doing."