In football, when a prolific offense encounters a punishing defense, the game is often billed as a contest of strength versus strength. The Pennsylvania primary certainly fits that description.

Donald Trump has generally been a powerhouse in big-state primaries, especially in the Northeast. The major exceptions have been when he was running against opponents who already hold office in the state or, by proxy, Scott Walker. Pennsylvania, which votes on Tuesday, is one of the biggest prizes in what figures to be a Northeastern winning streak for Trump, which he began in convincing fashion in New York.