US presidential candidate Kamala Harris dominated her Democratic rivals in a debate on Thursday, confronting front-runner Joe Biden's race record.
During an emotional exchange, Harris turned to Biden unprompted and said, "I do not believe you are a racist" but added that she had found his comments personally "hurtful".
Biden, who was on the defensive throughout the night, said she had "mischaracterised" his position, insisting he had entered politics to champion civil rights.
Nine candidates who participated in the televised debate are vying to take on Republican President Donald Trump in the 2020 election.
The Democratic candidate will be selected at the party's convention next summer.

Kuwait International Airport suffers 'significant damage' after drone attacks
Israeli strike kills three Lebanese journalists, reports say
Russian drones kill four in Ukraine, damage key infrastructure
Manila, Beijing resume talks on South China Sea, energy security
Yemen's Houthis confirm launching attack on Israel
Nepal's former PM arrested over Gen Z protests deaths
UN establishes task force to address Hormuz navigation challenges
Worker injured in drone attack on Oman's Salalah port, crane damaged
