Seattle Judge John Coughenour Suspends Trump's Executive Order on Jus Soli Signed on January 20. President: "We Will Appeal." 18 More States in Court

The case is one of five lawsuits being brought by 22 states and a number of immigrants rights groups across the country.

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.