NEW YORK: President Donald Trump's administration asked the US Supreme Court on Wednesday to let it proceed with a plan to build a US-Mexico border barrier in a remote region of West Texas that includes Big Bend National Park.

The Justice Department filed an emergency request asking the court to lift a federal judge's order halting wall construction in the region while a lawsuit against the project, brought by an environmental group and other challengers, proceeds.

The Republican president has long touted building or reinforcing barriers along the US-Mexico border as a signature part of his anti-immigration policies.

But his administration's push to extend border infrastructure into the national park, about 400km southeast of El Paso, has faced opposition from local officials, conservationists and some Texas Republicans.