I don’t think they need to fuss around with it even that much.
Just make them hold an entirely new election wherein the winner has to get 51% of the popular vote. The more straightforward, equitable and democracy-based a system is, the more trouble the GOP seem to have winning in it. When technicalities and subsections start being introduced is when they start to find ways to slide in.
Hollow power grabs are about the only thing the GOP has left these daysThe CA Republican parties recall shenanigans are pointless and hugely expensive/wasteful. Which is amusing since this is a party that claims to be about fiscal conservatism as they're more than happy to blow money on longshot recall attempts to get one of their own in power for less than a year before they'll likely be replaced anyways.