Check out the Powel Memorandum. From the 70s moneyed interests started to systematically shift power to the wealthy and large corporations. They created think tanks like the Heritage Foundation to give the project the veneer of scientific legitimation. Reagan was the first to accept a policy blue print from Heritage. Since then they have been working to stack the courts, form government policy and legislate a shift if money and power to the few. Trump is reaping the benefits of what has been prepared since Reagan. Trickle down economy was one of the greatest scams of all time.