The emergency appeal comes in the battle over birthright citizenship — but it could have ripple effects in cases challenging many aspects of Trump's agenda.

President Donald Trump’s attempt to restrict birthright citizenship is now at the Supreme Court. The overall legality of his policy isn’t at issue in this new appeal — rather, his administration is asking the justices to narrow the nationwide scope of lower court rulings blocking the policy from taking effect while litigation about its legality moves forward.

President Donald Trump asked the US Supreme Court to let him partially enforce his executive order seeking to restrict automatic birthright citizenship, pulling the court into his drive to upend a longstanding constitutional rule.