The dispute did not involve abortion, but rather a legal battle over whether states could block Medicaid patients' access to other health services.
A presidential pardon could keep Trump's former campaign chairman out of federal prison, but it would not free him from being prosecuted on similar state charges.
The statement says the acting AG hasn't been vetted and calls on the president to nominate someone to succeed Jeff Sessions, who was forced out last month.
A case involving an Alabama man asks the justices to abandon more than a century's worth of decisions.
Tyson Timbs, convicted of selling drugs, is fighting to get his $42,000 Land Rover back after it was confiscated by the state of Indiana.
Government lawyers said a judge's ruling temporarily blocking the restrictions undermined efforts to encourage the people in the caravans transiting Mexico to follow U.S. law.
"It's a closed loop," said Justice Sonia Sotomayor, who appeared to side with the customers.
Apple urges the Supreme Court to throw the case out, arguing that it's not selling anything but only operating a marketplace.
The nation's highest court rarely allows such a move to leapfrog over the usual appeals process.
Trump has faced a growing backlash over his choice to appoint Whitaker as acting attorney general after forcing Jeff Sessions to resign.
Advocates have warned that adding the question would making immigrants reluctant to respond to census takers.
The order to restore Jim Acosta's access came from Judge Timothy Kelly, appointed a year ago by President Trump.