Presidential hopefuls Hillary Clinton and Bernie Sanders ratcheted up their attacks in a bruising, final debate before next Tuesday's New York primary.
The Democratic race has turned increasingly negative in recent days as the candidates traded barbs about their qualifications for the presidency.
They also clashed on Wall Street banks, gun controls and the minimum wage.
Mr Sanders has won seven of the past eight contests, but Mrs Clinton holds a clear lead in race for the nomination.
The Democrats have largely avoided the personal attacks that have dominated the Republicans' debates.
But with so much at stake that changed in Thursday's debate.
"Does Secretary Clinton have the experience and intelligence to be president? Of course she does," Mr Sanders said at the debate. "But I do question her judgement."
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