The Congressional Research Service is a respected, independent research arm of the U.S. Congress that is typically called upon to research and report on a wide range of issues. When it was asked to research the issue of whether tax cuts for upper income people ("job creators"), it reported back that there was no correlation between tax cuts for the wealthy and job creation or economic prosperity: it just make wealthy people even wealthier.
Well, this didn't sit well with the protectors of the 1%. Rethuglican Senate Minority Leader and unintentional turtle impersonator Mitch "Missy" McConnell had the report squashed, obviously because it undermined the most cherished myth of the modern Rethuglican/New Confederate Party that giving the wealthiest more wealth will trickle down to the rest of the country. It also demonstrated that taxphobic Grover "The Pledge" Norquist has the Rethuglican leadership's gonads in an undisclosed location, and is threatening to stomp on them if they depart from the "no taxes, never ever" pledge that they signed.
So add tax cut mythology to the list of Rethug fantasies, along with climate change denial, pregnancies from rape are impossible, and so many more.