The only way you are going to avoid the current situation with the voting in the US is to standardize the system across the states and districts. This is a terrible idea though, because it opens up the election to WIDESPREAD fraud. Nothing that is happening right now is evidence of WIDESPREAD fraud. It is evidence of certain districts not running as smoothly as others. After a legitimate investigation is done (and not the twitter detective agency) it may even be evidence of localized fraud. That would be shocking, as the amount of moving parts needed to pull that off is staggering, but I suppose it is possible.