While the vast majority of campaign ads are misleading at best, create false boogeymen, present you with a false choice and/or are simply outright lies; often those calling for “reform” are seeking to get control of political speech or at minimum put their thumb on the scales. To them, reform is not improvement, it is control.
This short video from Prager University featuring George Will, explains many of the reasons why this is so true.
How about, “all money donated to a candidate must be from said’ candidate’s home state”. No ‘reformer’ is going to propose such an idea.