U.S. President tests eight 30ft high walls for border with Mexico

Eight prototypes are being examined in San Diego as the US President looks to introduce one of his key campaign promises.

The eight 30ft high slabs are the first tangible part of the controversial project that the US President says will help solve America's immigration problems.

Eight construction companies were given the chance to produce their example of a wall that would work.

Officials from Customs and Border Protection (CBP) are now testing those offerings.

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