That would be nice in principle, yes, but in a CU world, that's asking the fox to vote to lock itself out of the hen house.

In practice most of the foxes that promise to do so never actually will.

What's your proposal to solve this?

Frankly, I think it's much less of an issue than it's made out to be. If money meant so much, Donald Trump wouldn't have beat Jeb Bush on the way to beating Hilary Clinton.

To me, money in politics is the red herring to keep you from looking at the real election reform that needs to happen, some combination of open primaries (to remove the effect of primaries going to more extreme candidates rather than centrists) and an alternative to first past the post elections to allow people to vote for who they like without worrying about throwing away their votes (there are many different systems to do this, they're all major improvements).

The money in politics is used by the parties to back their preferred candidates and the voters go along with it in the general elections because they don't want to waste their votes. The money helps them do the bad thing but it isn't the bad thing.

You've got my support for switching from FPTP to something like RCV, and for open primaries!