This tax would act something like sales taxes do in the various states. On a monthly basis, the recipient would pay a federal tax of 25% on the gross amount of all contributions received the prior month.
Any time Congress felt the need to increase taxes they could increase this tax by a simple majority vote, but the tax could not be reduced below 25%.
Any time taxes on people or businesses was increased, this tax would automatically be increased by a like amount.
Any monies remaining in the campaign accounts after the current election would be remitted to the U.S. Treasury to pay off the national debt.
Political Action Committees (PAC's and Super PAC's) would be subject to the same regulations.
It's time for politicians to pay their "fair share."