Campaign finance reform people -- has this ever been tried? Limiting funds at the district level?

[EFerrari]

Reform will never come at the federal level. But, has anyone ever put together a plan to limit contributions at the district (local) level for federal candidates? It would take longer but in the end, voters would have more influence in our elections than Big Money.

Who knows much more about this than I do? :)

ETA: An example that comes to mind, if Santa Clara Co. based Goodyear Tire were limited by law to the maximum individual donation for Candidate X and barred from donating from another venue for that candidate, then Goodyear Tire would simply be following the same rules that we all follow. ???