Fear vs. Hope, Unity vs. Division

These are themes that have echoed throughout this campaign. Since the very beginning of the race, since even before then in Obama's '04 convention speech this has been a race about opposing world views.

Fear vs. Hope has already been played out slightly. Even the famous Obama slogan is shifting away from hope. But from my view (just slightly biased) McCain has run his campaign on the principle of fear. The terrorists will attack us again, Vote McCain; the sky is falling, Vote McCain; your children aren't safe, Vote McCain. Everything is much worse than you imagine it is, Vote McCain. Whereas Obama has relied on the idea that America is a strong and resilient country that has lost its way slightly, and we can get back on track so long as we have faith and hope that we can do the right thing. Obama voiced these sentiments again when he accepted the party nomination back in Colorado. Voters need to chose hope in the election over voting out of fear.

http://thecaucus.blogs.nytimes.com/2008/10/27/obamas-closing-speech-seeks-unity-faults-mccain/
The concept of Unity vs. Division has been handled much differently. Obviously both candidates are going to be claiming the idea of Unity as a central campaign tactic. The most glaring example that comes to mind is the disgusting comments made by Palin and echoed by McCain about the parts of the country that are, "real America."
http://thecaucus.blogs.nytimes.com/2008/10/17/palin-visits-a-pro-america-kind-of-town/?scp=1&sq=pro-america&st=cse
The underlying concept of this is that there are in fact Two Americas and what it makes me believe is that if McCain and Palin are elected they would only be concerned with representing the America that voted for them. As opposed to Obama with his message of unity no matter who becomes the next president.

The next president is going to inherit an extremely bad economic crisis, and at that point it is going to be more crucial for the President to be able to unite the nation under one grand cause than what the president's preferred tax policy is going to be.