From today's New York Times editorial on the Republican Tax Plan:
The politically driven aim of keeping the amount of overall revenue unchanged undermines virtually every useful idea in the plan. It reduces many of the loopholes and special breaks for corporations, but then uses that revenue to lower the corporate rate from 35 percent to 25 percent.
Hmm... So keeping the amount of overall tax revenue unchanged is "politically driven." Clearly, the apolitical thing to do in any tax reform bill would be to increase tax revenues, right?