The bottom line of the new proposal is, if you are in a high tax state such as Oregon, and a middle class household (1 kid under 18) making about $100,000 a year you will come out a loser.   Especially if you itemize now and are able to deduct some for charitable giving.  Once the property tax and state income tax exemptions are gone chances are you are not  likely to reach the threshold for itemizing anything (including charity) and the doubling the standard deduction will not equal out to what you were previously able to itemize.  Such is the life in the high tax blue states.  And guess what, the Republicans don't care if NY, CA, NJ, CT, OR  don't ever vote for another US presidential candidate.