Call me old-fashioned but....
I thought the job of a Congressman was to represent his constituents. Of course the good citizens may not want to get value for all the money they send to DC, but somehow I doubt it.
If Lessig wants money out of politics, the best way is to keep politics out of money. Believe me, the money people don't like feeding the bears any more than anybody
else. However, it's the only way to keep said critters out of your pantry.