United States President Donald Trump has signed two executive orders in a new but narrower attempt to curtail birthright citizenship, renewing his challenge to a provision of the US Constitution after the Supreme Court rejected his previous effort.

President Donald Trump says he is once again trying to limit birthright citizenship in the U.S. He says he's signing two executive actions on immigration.

Limiting birthright citizenship has been one of the top priorities in the Republican president's crackdown on immigration.

Trump takes aim at ‘birth tourism’, setting up court battle