I'm not going to ask anyone to vote for anyone in particular. Frankly, I don't see any particularly good options for the Presidency this year. Even the Constitution party candidate has significant 'invade the world' tendencies. But I would like my readers to consider carefully several issues that haven't already been done to death in this sphere. Towards that end, I'm not going to talk about Iran, the Supreme Court, or abortion.
What I'm going to ask you to consider is this:
There is a reasonable probability that within the next 8 years that we will have a 'things fall apart, the center can not hold' event. There are lots of ways to get there, and there's no slack in the system to keep them from creating cascading chains of failure. Cascading chains of failure have serious potential to create what I'll euphemistically call a 'national triage event'. Recent moderately severe weather events (the various derechos, Sandy, etc) should have updated your priors as to the failure modes of our terribly complex, incredibly brittle system of provision.
Who do you least want having a strong influence on 'national triage event' decisions? Who do you most want having that influence? Consider these questions very very carefully.