If our world leaders were aliens, our lives would probably be much simpler.
Imagine, either you're dead, or you're alive, either because the aliens have killed and eaten you, or because they are worse/better or the equally as bad at running the world as some of our present world leaders.
After all, we are all going to die through some sort of disaster like global warming aren't we?
So why don't we try aliens? They may have the solution.
Obama however...can stay.
Of course, if he's an alien... bargain.