Effective immediately, the Trump administration can begin planning for how it would implement an end to birthright citizenship.

In a June 27 ruling, the Supreme Court granted the Trump administration’s request to partially halt nationwide injunctions blocking President Donald Trump’s executive order ending birthright citizenship for certain people born in the U.

The ruling left unsettled the question of whether children born to immigrants without full legal status in the United States are entitled to automatic citizenship. So what happens now?