Harris has a lot of strengths. Giving interviews isn’t one of them.

Vice President Kamala Harris, the Democratic presidential nominee, walks on stage to speak with the National Association of Black Journalists during radio interview broadcast by WHYY-FM, a public radio station, in September. Vice President Harris is a sharp debater and a tireless campaigner, but televised interviews are a weakness. Her professional experience may explain why. (Kenny Holston/The New York Times)

The first question Vice President Kamala Harris faced Wednesday night, in her first solo interview with a major cable network as the Democratic presidential nominee, was posed as a gentle hypothetical: What would she say to the many Americans who do not see how her economic policies would serve them?