This is a work in progress. I may come back to it. I may never:
No one has "what it takes" to be president. America has reached the limits of what it can do in the world and is failing. There are no good candidates this election because no human on the face of the planet can meet the challenges of 21st century government.
The problem is caused by many parts, but the two biggest are:
1. The failure of the abilities of human consciousness to be able to make multiple decisions quickly and effectively without being swayed by any kind of personal interests. With the conservatives, those personal interests are profits and business. With the liberals, those personal interests are any number of emotionally driven issues which are used to control them.
2. The inability of most of the western world to accept that unless you adjust your expectations to voluntarily live with massive inconvenience, and discipline yourselves to respond appropriately and holistically to those inconveniences, you will fail in your goal to remain a cohesive civilization.
Your response to every problem that has been thrown your way for these past 50 years has become increasingly inadequate. The majority of the cause for that inadequacy is the cult of individuality that arose from the 1960s and 1970s. The lie that the individual is all important has utterly weakened any firm intellectual foundation that once existed previous to the changes born out of that era. Born of that same family is also the dislike and distrust in any organization with any power over individuals. This prevents people from organizing in any productive way to achieve a goal. The more successful the organization, the more it will not be trusted.
You face the threat of environmental disasters on many fronts of which a decent number of our modern technologies can take the blame for causing. How do you respond? You either waste your time and energy protesting the businesses that are responsible. Or you try and create the modern day equivalent of the indulgences of the catholic church and excuse certain polluters because they're throwing money at the problem. Or you just bury your heads in the sand and say, "there is no problem because we can't even prove it's man made".
You face terrorism from a variety of people and groups with self-serving and negative agendas. Instead of trying to find ways to thwart terrorists that involve real security, what do you do? On the one hand, you launch a poorly planned attack on a country that had little to do with terrorist attacks in the world. That attack turns into the current quagmire in Iraq that you have little choice but to remain engaged in now. On the other hand you waste more time arguing and protesting in the name of peace without ever accepting that humans are not a peaceful animal.
Do you even consider that part of the problem for the massive disagreements in directions to take might be caused by the intellectual "software" of one or more cultures being completely incapable of understanding or relating to other cultures? No. That's massively inconvenient to the liberals because it smacks of nationalism or even racism. To the dimwits on the right, it's not even conceivable. They actually labor under the delusion that everyone "good" thinks the way they do.
There is no human solution for the problems you are having. The population of the planet has gotten too big to be managed by human beings. The pace of change has increased tremendously to the point where no human being is capable of keeping up. You are seeing humanity reach the limits of self-governance on a world-wide scale and you are headed for complete failure.
So all of you people with your candidates picked out for this Fall, the joke is on you. You are all failures if you can't understand my warnings. There is no acceptable candidate, nor will there be. Do not deceive yourselves into believing in any kind of solution that human beings create. Humans are nothing more than arrogant, foolish animals with a tenuous and illusory set of laws and rules as your only distinction from other animals.