What we know about US H-1B visas Trump supporters are clashing over

An immigration row has erupted between Donald Trump’s supporters over a long-standing US visa programme.

The feud is about H-1B visas, which allow US-based companies to bring in skilled workers from abroad into certain industries.

Some immigration hardliners say the scheme undercuts American workers – but proponents say the visas allow the US to attract the best expertise from around the world.

The president-elect has weighed in, saying he supports the programme – despite being critical of it in the past – and tech billionaire Elon Musk has also defended it, saying it attracts the “top ~0.1% of engineering talent”.

Here’s what the data tell us about who gets into the US on these visas.

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