To be clear: There isn't a *single* state that certifies its results *on* Election Day. When elections are called, it's because of media *projections,* not the "final total." Indeed, federal law gives states at least five *weeks* to certify their results:
Except that federal law gives states *at least* 35 days after the election to certify its results—and for good reason:
3 U.S. Code § 5: States have five weeks to certify their elections, work out any controversies, and choose their electors. Networks project the winners. Trump is confusing news reporting and projections with reality TV.