The US presidential candidates Democrat Hillary Clinton and Republican Donald Trump have defended their policies in their first US Presidential debate on Tuesday.

The duel in New York could be the most watched debate in television history, with 100 million viewers.    

Both "presidential hopefuls" showed significant differences over economy, foreign policy, gun laws and a host of other issues.

Hillary Clinton accused Trump of hiding his tax and business details from voters and criticised his statements on immigration, while Trump blamed the rise of Islamic State in Syria and Iraq on policies of the US Democratic Party.

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