Eighteen states and the ACLU filed lawsuits seeking to prevent President Trump from denying citizenship to children born in the U.S. to non-citizens.

Put simply, under Trump’s order, the children of most undocumented immigrants wouldn’t be US citizens, nor would the children of people in the country on student, work, or tourist visas. This is more than a reinterpretation of the 14th Amendment — it’s an attempt to do away with the jus soli principle that undergirds US citizenship.

The American Civil Liberties Union on Monday night filed a lawsuit challenging President Donald Trump's controversial executive order that seeks to end birthright citizenship.

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,

The Trump order seeking to disqualify immigrant babies from citizenship strikes a blow against "constitutional bedrock," the ACLU claims

An immigration group sued on Wednesday to block President Donald Trump's move to expand fast-track deportations under his pledge to remove millions of people who are in the country illegally. People facing fast-track deportations do not have access to an attorney and are unable to present evidence against their removal from the U.

The American Civil Liberties Union (ACLU) sued Wednesday over President Trump’s expansion of a program that allows immigration officials to carry out swift deportations. Trump’s Department of Homeland Security on Tuesday issued a rule enabling expedited removals to take place nationwide for migrants who cannot prove they have been in the country for two years.

President Donald Trump’s crackdown on immigration is facing another lawsuit, this time over expanding fast-track deportation for people who can’t prove their long-term residency in the country.