He doesn't need to break it down.  If you live in the southeast or midwest and are middle class or lower chances are you will receive a tax reduction.  It you live in the northeast or west coast chances are you will not pay less and probably pay a little more than you are now.  Wyden will whine about corporations but a lot of them are not paying the 35% rate now anyway because on international loopholes.  The 20% rate is trying to get them to get them back home and paying the taxes here rather than to Ireland, etc.  The real losers are likely the blue states.