Swing voters have lately seemed to vote on national security, and Obama has no experience or credibility on this issue. Hillary Clinton does, and could win a real debate with McCain.
Sorry, but just because John McCain is wrong on far too many issues doesn't take away from the fact that he's an American hero. He withstood years of brutal torture in Hoa Loa prison. Moreover, he could've left at any time after the first several months, but refused to do so until they released his fellow crew mates.
Actions speak louder than words, and those are some pretty heroic actions. No one can responsibly refute this.
How will Obama, a media creation bereft of any legislative accomplishments and foreign policy experience win the "keep you safe," debate? Think of the tactics used against Vietnam Vet John Kerry in 2004, what can Obama possibly say to that?
Hillary Clinton may poll lower than Obama right now, but she's The Democratic Party's only shot to win the presidency in 08'. Just wait until November (if Obama gets the nomination) and you'll see this diary's prescience.