“should change the electoral college from winning most votes in a state to winning most votes by county.”
Sounds like a truly great idea.
IMO will require Article V Convention of States as per Mark Levin’s Liberty Amendments.
Article 5 convention is closer than than people realize. We already have the governors. We are close in congress, we will have the Supreme Court which means it’s in the Senates hands.
Trump does a good job we can have at least 60 in 2018. However I would push the narrative of voter ID and when the rats fight back propose the county electorate law. Takes their entire argument about disenfranchising voters off the table as well as promotes 1 man 1 vote which is easily monitored at the local level.
I think the States decide how to allocate. I don't think it would take a CoS to do it, unless it was to be forced nation-wide.