America’s divided electorate has again advanced President Biden and Donald Trump to the general election to determine who will serve as president starting Jan. 20.

The last time the U.S. presidential election was a rematch of the previous election, Dwight D. Eisenhower smashed Democrat Adlai Stevenson into little pieces (figuratively), as he had four years before. This rematch promises to follow that pattern, not in outcome but in similarity. In 2020, Biden won as a function of narrow victories in a handful of battleground states (though he won the popular vote much more handily). This year’s outcome, by all appearances, will be even more narrowly determined.