The Kansas experiment refers to Kansas Senate Bill Substitute HB 2117, a bill signed into law in May 2012 by Kansas state Governor Sam Brownback, and its impact on Kansas. It was one of the largest income tax cuts in the state's history. The Kansas experiment has also been called the "Great Kansas Tax Cut Experiment", the "Red-state experiment", "the tax experiment in Kansas", and "one of the cleanest experiments for how tax cuts affect economic growth in the U.S." The cuts were based on model legislation published by the conservative American Legislative Exchange Council (ALEC), supported by supply-side economist Arthur Laffer, and anti-tax leader Grover Norquist. The law cut taxes by US$231 million in its first year, and cuts were projected to total US$934 million annually after six years, by eliminating taxes on business income for the owners of almost 200,000 businesses and cutting individual income tax rates.