The Ethos of Biden

Sen. Biden tries to establish his Ethos as most of his campaign has gone, be examining the ethos of Sen. McCain. Both candidates fail to answer the question for more than a few seconds. The question asked was about their own campaign promises, specifically ones they can't keep. Biden addresses this in 0:16-0:24 only (being 8 seconds longer than Gov. Palin's initial response spent on the question). The rest of his response talks about what his opponents are going to do, as if to establish that he, by not doing any of this, has the nations best interest in mind.