U.S. District Court Judge Timothy Kelly announced his decision Friday morning.
CNN had asked that Acosta’s credentials be returned while a lawsuit over their revocation goes forward.
The network’s chief White House correspondent has clashed repeatedly with Trump and press secretary Sarah Huckabee Sanders in briefings over the last two years. But the White House pulled his credentials last week following a combative press conference in which he clashed with Trump.
The judge is a Trump appointee.