Republicans like to reduce the maximum tax rate, which benefits the wealthy, then attempt to balance the budget at the expense of the middle class.
Our inequality of wealth and the shrinkage of the middle class shows that they have been partially successful. When Reagan lowered the maximum rate from 70 percent to 50 percent, as part of his trickle-down theory, wealth disparity increased and the national debt doubled. Undaunted by that failure, Bush lowered the tax rate further with similar results.
Now, Trump and Jeb are again proposing a trickle-down plan. Trump's version is estimated to cost the treasury $10 trillion over the course of 10 years. Jeb's version will only cost $3 trillion.
Einstein said that repeating the same process and expecting a different result is a sign of insanity.