Donald Trump is set to launch his immigration crackdown with an order enabling construction of his Mexican border wall.
The President is expected to sign several executive orders on Wednesday addressing one of his central campaign messages – that illegal immigration to the US is out of control and threatening the country’s security.
As well as taking the first steps towards building what may eventually be a 2,000-mile barrier stretching across the southern US, Mr Trump is also expected to target so-called ‘sanctuary cities’, where local officials refuse to hand over illegal immigrants for deportation.
Building a 2,000-mile wall along the Mexican border was one of his key proposals during the presidential election campaign.
During his election campaign, Mr Trump said Mexico would pay for the wall, which he said would cost about $8bn (£6.4bn).
He has since said the US would recoup the costs from its neighbour at a later date.