BBC: Trump wall – all you need to know about US border in seven charts.

“Mr Trump argues $5.7bn (£4.5bn) is needed to address a “humanitarian and security crisis” at the southern border and has warned the shutdown will continue until he gets the cash.

Democrats say the wall is a waste of taxpayers’ money and accuse the Trump administration of a “manufactured crisis”.

Here are seven charts and maps that try to explain where we are with the wall and what the situation is like at the US-Mexico border.”

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