Tuesday night was the first — perhaps the only — debate between Donald Trump and Kamala Harris. And it proved one of Harris’s stump speech lines right: Turns out she really does know Trump’s type. She had a theory of who Trump was and how he worked, and she used it to take control of the collision. But this was a substantive debate, too. The candidates clashed on abortion, health care, the economy, energy, immigration and more. And so we delve into the policy arguments to untangle what was really being said — and what wasn’t. Thoughts? Guest suggestions? Email us at ezrakleinshow@nytimes.com. You can find transcripts (posted midday) and more episodes of “The Ezra Klein Show” at nytimes.com/ezra-klein-podcast. Book recommendations from all our guests are listed at https://www.nytimes.com/article/ezra-klein-show-book-recs. This episode of “The Ezra Klein Show” was produced by Claire Gordon. Fact-checking by Michelle Harris, with Kate Sinclair and Jack McCordick. Our senior enginee...