Trump pushes for an end to birthright citizenship

US President Donald Trump plans to sign an executive order aimed at ending birthright citizenship, ratcheting up a crackdown on immigration.

As legal scholars voiced doubts, Vice President Mike Pence on Tuesday confirmed that Trump will push ahead with the plan.

The move would target children born in the US to non-citizens and immigrants who are in the country illegally.

It comes as Trump has been ramping up the rhetoric on immigration, with Democrats poised to make strong gains at the ballot box.