Trump's order directs federal agencies to stop issuing citizenship documents to U.S.-born children of undocumented mothers. It also applies to mothers in the country on temporary visas, if the father is not a U.S. citizen or permanent resident.

A federal judge Thursday blocked President Donald Trump’s executive order outlawing birthright citizenship —the policy automatically giving citizenship to anyone born in the U.S.—and declared it “blatantly unconstitutional,” as legal experts widely believe the president does not have the power to change the policy on his own.

U.S. District Judge John Coughenour said he couldn't recall another "case where the question presented is as clear as this one."

One of the many executive orders President Donald Trump signed on Monday included one to end birthright citizenship. Here's what to know about it and why lawsuits have already been filed.

A federal judge has temporarily blocked President Donald Trump’s executive order ending the constitutional guarantee of birthright citizenship regardless of the parents’ immigration status.

A federal judge said Thursday that President Donald Trump’s executive order ending birthright citizenship was “blatantly unconstitutional” and issued a temporary restraining order to block it.

President Trump’s executive order seeking to end birthright citizenship has kicked off an unprecedented legal battle over immigration policy. We explain the legal case and its broader implications.