Politics is the root cause of the failure of government. The US is a Democratic Republican. At the same time, we believe that We the People run the country.
We vote for our representative to do our bidding, but politics forms alliances that transcend our bidding. Once our vote is cast, the party is the People, and we are put on the shelf until the next election.
The question asked is really too open to do it justice. The current congress and president are the culmination of almost 240 years of politics in the US. They are proof that politics and politicians don't change, but what has changed is the loss of the American Lifestyle which peaked in the 1950s and 60s.
The two political parties are far apart in ideology as they ever were, and the chance of this changing cannot happen without a change in the political paradigm. This is where candidate from outside the political arena can make the change that won't be allowed by politicians.
We can't just say, business people are good or bad for the country as elected officials. Arnold Schwarzenegger proved to be a disappointed as governor of California. But that doesn't mean that Mitt Romney or Donald Trump should be eliminated from the elections.
The US got to this point in history with politicians, and politics, and this is not a good place. So some thought should be used to break the cycle generated by pure politics. The recipe of politics is stale, and has a bitter taste today. As in food recipes, when the stock is tainted it can't be saved by adding ingredients. The recipe needs to be changed.
Our jobs outside of the government sector are run by business, and those in government are insulated from business. It is two different worlds, and we need people in the government that understand how the rest of us live. Government workers get the best benefits, good salaries, and have job security. Most of the working people in the non government sector work under an At Will Employment Contract that gives them no job security. Benefits run the gamut, but the lower on the work force, the lower the benefits. We could only dream of having the same Government Pensions, vacation times, and holidays.
My point is that politics in government doesn't solve the problems of the people, as they cannot identify with the plight of the average person. When they talk about helping the average person, they are doing so in political values, not people values.