Doubling the Standard Deductions for single and married individuals will provide income savings to the majority of tax filers.  As for eliminating the deductions for Local and State taxes, this will affect rich taxpayers who itemize their deductions and are mostly residing in 6 states which have higher Local and State taxes.  Taxpayers in the other 44 states have been subsidizing rich taxpayers living in those 6 states by allowing them to decrease their Federal income taxes.