> 4. Congress may regulate money in politics;

This one is completely useless. Congress may regulate, but why would they? They directly benefit from more money in politics.

If anything this should be more direct, and read: "Political donations may only come from individual US citizens, and cannot exceed the amount of monthly minimum wage per person, per year".

Or maybe just add a field in the tax return form where anyone can name a party to receive some fixed amount donation, subtracted from person's taxes.