The constitutional formula determines how many electors a jurisdiction receives, while state law generally determines how a popular result appoints them. Most states and the District of Columbia use winner-take-all: the statewide plurality winner receives the whole slate.

It is a strategic label, not a permanent legal category; coalitions, candidates, migration, turnout, and issues can change the map. Safe-state voters still determine their state result and affect other offices, but an additional presidential vote there is less likely to change the electoral allocation.

The national popular vote and electoral vote consequently answer different questions. The popular total aggregates ballots across the country; the electoral total applies state appointment and allocation rules. A candidate can build enormous vote surpluses in safe states yet lose enough close states to fall short of an electoral majority. That divergence does not itself establish fraud or a counting error.

Video lesson: Election Basics: Crash Course Government and Politics #36