Is Kamala Harris’s surge beginning to ebb? That’s the question raised by the recent New York Times/Siena College poll, which finds Donald J. Trump narrowly ahead of Ms. Harris among likely voters nationwide.

Nate Cohn, who covers American politics, explains why some of Ms. Harris’s strengths from just a few weeks ago are now becoming her weaknesses, and the opening that’s creating for the former president.

Guest: Nate Cohn, who covers American politics, explains why some of Ms. Harris’s strengths from just a few weeks ago are now becoming her weaknesses, and the opening that’s creating for the former president.

Background reading: 

• Both candidates have scant opportunity to shift the electorate, but for Mr. Trump, opinions are largely fixed.and-harris-times-siena-poll.html"> Ms. Harris is still unknown to many.
• How the fight to define Ms. Harristrump-debate.html"> will shape Tuesday’s presidential debate.

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