An executive order President Donald Trump signed Monday night vows to end birthright citizenship in the US, despite broad legal consensus that the Constitution guarantees American citizenship to nearly everyone born on US soil, Report informs via Politico.

Trump’s order directs federal agencies to refuse to recognize US citizenship for children born in the US to mothers who are in the country illegally or here legally on visas, if the father is not a US citizen or lawful permanent resident.

The order would deny US citizenship, including passports, to those children born in the US starting 30 days from now, if at least one parent isn’t an American citizen or green card holder.