Warren gains, Harris slips -- and the room for movement is vast

A gain for Elizabeth Warren and a slip in support for Kamala Harris place Joe Biden, Bernie Sanders and Warren atop the field in the latest ABC News/Washington Post poll, days in advance of the Sept. 12 Democratic debate in Houston, sponsored by ABC and Univision.

The poll finds Biden, this summer’s front-runner, far better rated for electability than for being “the best president for the country.” Still, his supporters are more committed than those of other candidates, and electability has advanced as a priority, helping him hold his ground -- albeit not advance.

See PDF for full poll results, charts and tables.

Biden has support from 27 percent of Democrats and Democratic-leaning independents in the national survey, compared with 19 percent for Sanders and 17 percent for Warren. The rest of the field is in the single digits, including 7 percent for Harris, 4 percent for Pete Buttigieg and 3 percent apiece for Beto O’Rourke and Andrew Yang. All others are at 1 percent or less in this poll, produced for ABC by Langer Research Associates.