"Conflicto entre partidarios de Trump intensifica en torno a las visas H-1B: lo que necesitas saber"
La disputa gira en torno a las visas H-1B, las cuales permiten a las empresas radicadas en Estados Unidos contratar a trabajadores cualificados del extranjero en industrias específicas.
Critics 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".