The Illinois senator used his first public appearance of the week to knock down the notion that he might accept the party's vice presidential nomination. He noted that he has won more states, votes and delegates than Clinton so far.
"I don't know how somebody who is in second place is offering the vice presidency to the person who is first place," Obama said, drawing cheers and a long standing ovation from about 1,700 people in Columbus, Miss.
Saying he wanted to be "absolutely clear," he added: "I don't want anybody here thinking that somehow, 'Well, you know, maybe I can get both.' Don't think that way. You have to make a choice in this election."
"I am not running for vice president," Obama said. "I am running for president of the United States of America."
Obama aides said Clinton's recent hints that she might welcome him as her vice presidential candidate appeared meant to diminish him and to attract undecided voters in the remaining primary states by suggesting they can have a "dream ticket."
He told the audience that it made no sense for Clinton to suggest he is not ready to be president and then hint that she might hand him the job that could make him president at a moment's notice.
"If I'm not ready, how is it that you think I should be such a great vice president?" he said, as the crowd laughed and cheered loudly.
Many political activists discounted the notion all along. They noted that the two senators lack a warm relationship and, more important, that Obama would be ill-served by hinting he might accept the vice presidential slot when he holds the lead in delegates and hopes to win the presidential nomination.
Moreover, many insiders feel the ambitious and fast-rising Obama would chafe in the vice president's job, especially in a White House wherewould almost surely play a huge advisory role.
Still, the notion of a Clinton-Obama ticket has received ample discussion in recent days on cable TV news shows and newspapers such as's tabloids.
"Well, you know, I think it's premature," he said of accepting the second spot on the ticket. "You won't see me as a vice presidential candidate."
Good grief Obama and Gore. YIKES! Both Obama and Clinton are sore losers. I do truly hope that Obama loses but if he does not than I hope he pick a running mate that most people dislike. Hehehe. I do not like Obama. I do not know him as a person but he political views are ridicules. I want to say to every one who supports him: For christ's sake he is not Martin Luther King jr.! Look past the phony exterior and see him for what he is! The thought of him as President not only scares me but really concerns me. He will not better our country. Clinton won't either for that matter. But who will? I don't know.