Because Kamala Harris’s presidential campaign is under a month old, Democrats see next week’s nominating convention as a unique opening to do more than usual to define her in the minds of swing voters. But there’s another opportunity here as well: A successful convention will deeply rattle Trump, and when he fears he’s losing, he does himself tremendous additional harm. We talked to veteran journalist Ronald Brownstein, who has a new piece for The Atlantic on the task ahead for Harris in Chicago, about what she might be able to accomplish—and how it could frustrate future Trump attacks.

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