It is always a given that the tories are funded by big business and that what is left of labour are funded by the unions, you can’t get much more transparent than that!
What this plan would do would be to isolate the the parties from the consequences of their actions, for example if the lib-dems get utterly slaughtered, as they should do, and their grass roots support refuses to fund them it means that the party could, and should, go broke. That won’t happen with a permanent supply of scarce taxpayers’ money.
And what if the BNP qualifies for state aid?