Nearly a fifth, 17%, remained undecided in the poll, which showed former Rep. Katie Porter trailing Harris at 9%. Porter announced her campaign in April, likely giving her a boost.

Democratic presidential nominee Vice President Kamala Harris speaks during a campaign rally, Sept. 20, 2024, in Madison, Wis. Scott Olson/Getty Images ...

As her deadline to decide whether to run for California governor or again for president, Harris says, "We are in this fight ...

More than 40,000 Black women joined a call supporting Kamala Harris, but many are concerned her candidacy will spark a ...