ERIE, Pa. (AP) — President Donald Trump pushed into arguably the most important state on the electoral map on Tuesday, opting for a rally in Pennsylvania instead of formal debate practice two days ahead of the final presidential debate that may be his last, best chance to alter the trajectory of the 2020 campaign.

Democrat Joe Biden took the opposite approach, holing up for debate prep in the leadup to Thursday's faceoff in Nashville. But Trump, trailing in polls in most battleground states, continued his travel blitz in the race's final fortnight, and delivered what his campaign has wanted to...