Pennsylvania has become the most important battleground in America’s presidential election

Both campaigns see Pennsylvania as a fulcrum of the 2024 election, and for good reason. The Economist’s forecast model suggests that the state—with its 19 electoral-college votes, the most of any swing state—is the tipping-point in 27% of the model’s updated simulations, meaning it decides the election more often than any other state. Mr Trump wins only 7% of the time when he loses the Keystone State. Indeed, he narrowly won Pennsylvania in 2016, and then he lost by 80,000 votes out of nearly 7m cast in his unsuccessful re-election bid four years later.