According To GAO, U.S. Corporations Already Pay Less "Effective" Tax Than Trump Proposes

GAO: After Tax Credits, Exemptions And Offshore Tax Havens, U.S. Corporations Pay An Effective Tax Rate Of 12.6%

(only one third the formal corporate tax rate before "deductions" kick in)

http://money.cnn.com/2013/07/01/news/economy/corporate-tax-rate/

Trump Says New Tax Plan Will Make Up For Revenue Loss By Juicing Economy. History Says No

http://paxonbothhouses.blogspot.com/2017/04/trump-says-new-tax-plan-will-make-up.html