Former US Vice‑President Joe Biden has come under attack from other Democratic 2020 candidates in a televised debate.
BBC reports the party's frontrunner shared a stage in Detroit with nine other presidential hopefuls and there were several sharp exchanges on healthcare and the border.
In an echo of the last debate in June, Senator Kamala Harris again launched an assault on Biden's record on race.
But she herself had to defend her actions against drug offenders when she was a prosecutor in California.
The winner of the Democratic presidential nomination will be announced next July at the party convention.
The presidential election will take place months later, in November 2020.
In addition to Biden and Harris, the debaters are:
New Jersey Senator Cory Booker
Former Secretary of Housing and Development Julián Castro
New York City Mayor Bill de Blasio
Hawaii Congresswoman Tulsi Gabbard
New York Senator Kirsten Gillibrand
Colorado Senator Michael Bennet
Washington Governor Jay Inslee
Business entrepreneur Andrew Yang
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