raising taxes on the rich has nothing to do with increasing revenues , it is only about 'fairness'.
If you wanted to really raise revenues you would slash corp. tax rates to 15 %. You would see an explosion of business start ups . If you don't agree , why does Apple sell its software and Itunes from Nevada instead of Cal. ( hint : no corp. tax in NV) and why is Cisco headquartered in Ireland
(hint : corp tax in Ireland 15 % , 35% in US why pay an extra 20 % of your profit in taxes