Many migrants have been denied rights to seek asylum under U.S. and international law since March 2020 on grounds of preventing the spread of COVID-19.
The Biden administration requested the high court end the pandemic-era Title 42 only after Christmas, after justices ruled to temporarily keep it in place.
Tensions remained high at the U.S-Mexico border Tuesday amid uncertainty over the future of restrictions on asylum-seekers, with the Biden administration asking the Supreme Court not to lift the limits before Christmas.