The votes for president are cast, of course, in the electoral college. The issue would be how an elector should or can cast their vote if the president wins their state but cannot serve. ... In some states, the electors are not legally bound to vote for the candidate who has won their state. ... Republican electors in those states would then most likely vote for the candidate the RNC had put forward to replace the president. But a number of states legally bind their electors to vote for the candidate who has won the state’s popular vote. Those laws have a gap: they don’t provide for what electors can or must do if Trump wins their state but can’t serve. ... My view is that even if the electors are formally bound by state law to vote for the dead candidate, they will go ahead and vote for the candidate the RNC has identified to replace the president, if he cannot serve. ... The bottom line is that the RNC would determine who the replacement candidate would be, should it come to that unfortunate situation. And Republican slates of electors in states the president won, because he remains on the ballot, would very likely follow the RNC’s recommendation. ...But one last possibility to ponder: If the RNC were deeply divided, and Republican electors then did not coalesce around a single replacement candidate, there might not be a majority winner in the electoral college. In that case, the House would choose the president from among the top three vote getters in the electoral college. In that process, each state delegation gets one vote.