To get nominated, one has to be perceived as someone charismatic, caring, capable of getting the respect of the top people in the Military, someone who has a history of being a team player and yet someone with fresh ideas that will excite the base of the party, attract new members, appeal to the independents, inspire hope and the desire to bring about change yet maintain the values and practices the define the party.
In other words, they must be someone who can talk out of both sides of their mouth and yet seem to be honorable and steadfast. They must know quite a bit about a wide variety of topics and yet heaven forbid, avoid coming across as an intellectual who by definition must be out of touch with the common or average man.
This excludes people without access to huge financial assets, without powerful and rich friends, honest and firmly ethical people who will resist the pressures to serve the powerful lobbyists, the tobacco, automotive, arms suppliers, insurance and for profit providers of health care to the rich or well insured and so on.
So when you eliminate the intellectual leaders, the uncorruptable, the visionaries that won’t stand still for the status quo, those detached from the rich power brokers listed above and independent thinkers you are left with the gutless, ignorant and those who resist any information that does not fit with what they devoutly believe to be universally true, those easily manipulated by advisers provided by the lobbyists, industry spokespeople, and party hack.
The brightest, the independent thinkers, the visionaries need not put themselves forward for nominations.
This explains how G.W. Bush got elected.
Except for rare exceptions like Barack Obama who created a groundswell of support by large numbers of people tired of all the lies and deceit, the future candidates will be useless and dangerous Charismatic dodo’s like Saint Sarah Palin of Alaska who so far has not fulfilled an term of any high office, and other easily packaged dilatants who will do as their told and keep those to whom they are beholding rich, fat, and satisfied at the expense of electors – citizens like you!