The order to block Trump's travel ban will stay in place. The 9th Circuit Court of Appeals ruled against reinstating it.
The Trump administration had asked the court to keep the order in effect while legal battles continued.
Trump's response, delivered by Twitter: "SEE YOU IN COURT, THE SECURITY OF OUR NATION IS AT STAKE!"
What's next: The order will continue to wind its way through the courts, likely all the way to a divided 8-member Supreme Court — a move Trump has said he would make.