As wars in Ukraine and the Middle East deepen, the U.S. presidential campaign is raising a crucial question: Whose idea of American foreign policy will the world get next?

Peter Baker, the chief White House correspondent for The Times, walks us through the plans put forward by Kamala Harris and by Donald J. Trump.

Guest: Peter Baker, the chief White House correspondent for The New York Times.

Background reading: 

• Ms. Harriszelensky.html"> met with Ukraine’s president, Volodymyr Zelensky, signaling that the White House was preparing her to take over a thorny diplomatic relationship.
• Mr. Zelensky alsotrump-ukraine-russia-war.html"> met with Mr. Trump as concerns mount in Kyiv that a second Trump administration could spell the end of American support against Russia.

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