Here's a few facts about the Kansas debacle...
The sales tax was increased....including taxes on food.
State spending INCREASED in all years except one (2013).
Instead of eliminating tax loopholes and broadening the tax base, the most common elements of tax reform, the state created a huge loophole by eliminating the tax on pass through entities. This caused a huge movement by businesses and individuals to restructure to take advantage of this 0% tax rate. Bill Self, the Kansas basketball coach, took advantage of this to avoid taxes.
The Kansas tax plan demonstrates that humanity  behavior is heavily influenced by economic incentives.