As they search for a 2016 presidential candidate, Republican voters face a choice on taxes: Reform the existing system, or start a new one?
It's a question of practicality as well as philosophy. Even incremental change on tax policy isn't easy. Still, it's easier than overcoming inertia, fear of change, and the forces of opposition that would mobilize to protect the basic structure of the existing system.
Some candidates haven't specified their tax plans yet. But the breadth of the Republican field ensures that the party's rank-and-file will have plenty choices on both sides. And taxes will certainly be a topic front-and-center at the next GOP debate on Oct. 28, hosted by CNBC in Boulder, Colorado.