Can a technical debate over tax plans trigger an identity crisis in the Republican Party? Apparently, yes. Sens. Marco Rubio of Florida and Mike Lee of Utah recently launched their “Economic Growth and Family Fairness Tax Reform Plan.” Within a few days former presidential candidate Steve Forbes fired back with a flat-tax plan. In policy circles the big question is whether Jeb Bush and Scott Walker will back “Rubio-Lee” or “flat tax.”

The Rubio-Lee plan takes a different approach in the name of achieving the old Republican goal of growth. But the approach is so different that it can hurt the viability of the Republican Party and even set in train changes that may slow future growth…

Read the full article in The Wall Street Journal here: Where the Rubio Tax Plan Falls Short.