Mealey's (January 19, 2021, 12:56 PM EST) -- SAN FRANCISCO — After a hearing in President Donald J. Trump’s appeal of a preliminary injunction that halted his ban of the WeChat social network and app, a Ninth Circuit U.S. Court of Appeals panel on Jan. 15 directed the president and an alliance of the social network’s users to submit supplemental briefs on whether Trump exceeded his authority under the International Emergency Economic Powers Act (IEEPA) by issuing the executive order that established the ban....