Democratic presidential front-runner Joe Biden clashed with progressive challengers Elizabeth Warren and Bernie Sanders on healthcare at the party's third debate.
Biden, who served as vice president for eight years under Barack Obama, was sharper and more aggressive than in either of the first two debates.
He accused Warren and Sanders of wanting to tear down the affordable Obamacare health plan for a more expensive Medicare-for-All programme.
"I know that the senator says she's for Bernie. Well I'm for Barack. I think Obamacare worked," Biden said, asking Warren and Sanders to explain how they would pay for their plans.
Thursday also marked the first time that the top 10 Democratic candidates shared the debate stage.
While they all focused on their shared opposition to Republican President Donald Trump, they did reveal deep divisions over immigration and foreign policy.
No injuries reported after fallen drone debris hits six houses in Saudi Arabia
China confirms three ships passed through Strait of Hormuz
Three UN peacekeepers killed in Lebanon as Israeli strikes pummel south
Russian attacks kill two, injure dozens
Iran calls US peace proposals 'unrealistic', Trump issues new warning to Tehran
Japan to coordinate on energy with Indonesia as Iran war disrupts supplies
Mexican immigrant dies in US immigration custody, ICE says
Israel passes death penalty law for Palestinians convicted of lethal attacks
