The GOP "plan" is a tax increase on 13% of the people who actually pay income taxes. In addition, it eliminates deductibility of state and local taxes for INDIVIDUALS but NOT FOR BUSINESSES.

With regard to tax "reform", remember, History teaches us:
Tax rate decreases are transient. Tax deductions removal are permanent. By law the rate "decreases" will only last for a few years since there is not a sufficient majority to make them permanent.

Cut the rates, permanently. Leave the deductions alone. SPEND LESS OF OUR MONEY!