When Donald Trump and Kamala Harris meet onstage Tuesday night in Philadelphia, they'll both know there's little debate that Pennsylvania is critical to their chances of winning the presidency.
The most populous presidential swing state has sided with the winner of the past two elections, each time by just tens of thousands of votes. Polling this year suggests Pennsylvania will be close once more in November.
A loss in the state will make it difficult to make up the electoral votes elsewhere to win the presidency. Trump and Harris have been frequent visitors in recent days, and the former president was speaking in Butler County on July 14 when he was the target of an assassination attempt .
The stakes may be especially high for Harris: No Democrat has won the White House without Pennsylvania since 1948.
Pennsylvanians broke a string of six Democratic victories in the state when they helped propel Trump to victory in 2016, then backed native son Joe Biden in the 2020 race against Trump.
