In response to questions from Tim Russert on NBC News' "Meet the Press," Obama conceded he no longer considers a run out of the question, despite past statements he would not run for higher office in 2008.
Elected to the Senate in 2004, Obama has been attending events in the early primary states.
"It's fair to say you're thinking about running for president in 2008," Russert said.
"It's fair, yes," Obama replied. " ... I would say that I am still at the point where I have not made a decision to run for higher office, but it is true that I have thought about it over the last several months."
"So it sounds as if the door has opened a bit," Russert said.
"A bit," the senator said.