I'm not sure it's to protect incumbents. Isn't there some guy out there threatening to give Newt $100M? I think it's more that the political class wants to pretend that no one is buying them.
Want to stop this BS?
No direct contributions to candidates. All money must go anonymously through a monitored third party which hides the identity of the donor much as a voter's identity is hidden.
ML/NJ
monitored third party
By whom ?
Wrong. Monetary contributions are free speech - Constitutionally protected. The correct prescription to corruption is no limits, no currency and total disclosure.