The 14th Amendment has long been understood to grant American citizenship to anyone born on U.S. soil.

After months of avoiding details about a divisive plan to end birthright citizenship, President Donald Trump’s administration is rolling out a series of new documents that offer a stark glimpse into how it would implement an executive order that upends the century-old understanding about the benefits of being born in the United States.

The legal battle over President Donald Trump’s move to end birthright citizenship is far from over despite the Republican administration’s major victory Friday limiting nationwide injunctions. Immigrant advocates are vowing to fight to ensure birthright citizenship remains the law as the Republican president tries to do away with more than a century of precedent. The high court’s ruling ...