President Trump is seeking to end birthright citizenship in the United States. What is it, which other countries apply the policy and who would be affected by the order?

Calling birthright citizenship "an unequivocal constitutional right,'' a federal judge on Feb. 6 blocked the Trump administration from implementing its plan to deny citizenship to children born to people who are not here legally.

A federal judge who already questioned the constitutionality of President Donald Trump’s birthright citizenship executive order is set to hear arguments over a longer-term pause of the directive.