Noteworthy is the income impact of taxes: under the current system, only high earners end up with a smaller share of total income after taxes.

FORBES: The Path To Tax Reform: Cutting Taxes For Those Who Pay For Them

High-income taxpayers should pay at least as large a share of their income in taxes as the rest of us.

FORBES: We Can Find Better Ways To Tax The Rich Than 'Buffett Rule' Bill

Taxes on millionaires and billionaires are already near a record high in terms of the share of all income taxes paid.

WSJ: Stephen Moore: Warren Buffett Is Wrong on Taxes