Donald J. Trump’s swift victory was driven by red shifts across the country, with gains among seemingly every possible grouping of Americans. The map below shows how votes cast in this race compare with votes cast in the 2020 presidential election in the same area. Only areas that have reported almost all of their votes are shown.

Counting is expected to extend beyond election night, primarily because election workers are not allowed to start processing mail ballots until Election Day. Senator Bob Casey, the Democratic incumbent,