In short, decide on social and economic principles politicians can use as guides in their decisions, like the political compass (find out where you fit in here) Let people not happy with the philosophy leave. This would greatly simplify decisions about foreign policy, wars, social programs (e.g. health care, state-managed retirement), legalization of marijuana, etc.
Since other countries don't have this, the country could be divided into four regions, based roughly on the political expectations of each region.
- West coast: Libertarian left
- East coast: Authoritarian left
- South: Libertarian right
- Midwest: Authoritarian right
Here are some competing representation of politics: