Common Sense
Some people are devoted. Some are articulate. Some don't know what they want except for what the media tells them. Buck's just blowing off steam. A couple of years ago, I thought Hillary would have made a good choice; but she's in too deep and would just put a nice smiley face on the same administration that owns her lock, stock and barrel. That goes for John McCain too.
Barack Obama is the only fresh face in the crowd, one that understands and will work for the common man; not the bureaucrats and special interests. To me, it's simple. He (hopefully), won't sell out.