WASHINGTON (AP) — A federal judge has blocked a rule that allows immigration authorities to deny asylum to migrants who arrive at the U.S.-Mexico border without first applying online or seeking protection in a country they passed through. But the judge on Tuesday delayed his ruling from taking effect immediately to give President Joe Biden’s administration time to appeal. The order from U.S. District Judge Jon Tigar of the Northern District of California takes away a key enforcement tool set in place by the Biden administration as coronavirus-based restrictions on asylum expired in May. The new rule imposes severe limitations on migrants seeking asylum but includes room for exceptions and does not apply to children traveling alone.