I think in this election americans vote for the "Unluckiest American President Ever'.
The person who will lead the U.S. for the next four years will have to face the toughest issues since the 'Great Depression'. As in the case of Franklin D. Roosvelt many important decisions have to be taken in the new president's term, decisions whose effect will be applied in years to come, a fact which may interfere with the president's popularity.
Let's all hope that the next time the global growth and prosperity will rise again, will not be the era after a 3rd World war.
One of the major crops of the end of the 2nd World War has been Nuclear Fission, a power which could generate electricity with extremely low efficiency while creating eternal toxic waste, which could also eliminate a couple of cities in less than a minute.
Would it be wise this time to research for the power which destroys a planet within a second?
Unemployment, unstable economy, ecological crisis, all that in a very volatile and tense international environment which seems to have extremely limited options for development.
The war into which NATO alies are captured, The deteriorating social and educational status of the Middle East and the war regions, are priorities which should be taken into consideration by the american voters this time.
Americans often like to be unaware of the impact of their ruler's decisions towards the rest of the nations. If this continues it might hurt.