This story was updated on Jan. 21 at 6:08 p.m. to reflect that the ACLU’s lawsuit was filed on Monday, not Tuesday. Hours after President Donald Trump issued an executive order Monday barring birthright citizenship to children of undocumented residents,

Plaintiffs in the ACLU’s lawsuit argue the president’s executive order banning birthright citizenship is unconstitutional.

The American Civil Liberties Union of New Hampshire and several immigrant rights organizations have filed a federal lawsuit against President Donald Trump and his administration over his executive order to attempt to change birthright citizenship.