Clever, but not accurate. It is just another tax, this time on excessive spending on propaganda. It is like a tax on cigarettes. In NM if you buy a full page newspaper ad supporting some candidate, the paper will charge you 7.5% tax on the price of that ad. My tax would happen at the moment you donated or spent to support a campaign or party. State and local taxes that followed later would be additional. Like taxing cigarettes, my goal is to make folks think twice about how they spend their money and reduce the "money is speech" effect of citizen's united.