New polling from The New York Times/Siena College shows Donald Trump with a slight lead in Arizona, and Kamala Harris similarly ahead by a narrow margin in Pennsylvania — a divergence of the Rust and Sun Belt states that continues to point to a very close presidential race.

While Harris has a slight lead nationally, there's no clear leader in the seven swing states likely to decide the election.

Ms. Harris leads by four points in Pennsylvania, just as she did immediately after the final debate. Mr. Trump leads by six points in Arizona, about the same as the five-point lead he held three weeks ago.