Updated 09.15

Republican contenders for the US Presidential nomination met in a TV debate last night.

Donald Trump drew boos from the audience for his stance on immigration.

He said: "We are a country of laws. We need borders. We will have a wall. The wall will be built. The wall will be successful. And if you think walls don't work you just have to ask Israel. The wall works, believe me, properly done."

He and another candidate, John Kasich, disagreed on the issue.

Kasich said Trump's idea of deporting more than 11 million illegal immigrants living in the US is a "silly argument" that ignores the well-being of the families and children involved.

Trump insisted "We have no choice."

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