The U.S. Supreme Court in a 5-4 vote on Friday rejected a request lobbied by environmental groups to halt construction of the Trump administration's U.S.-Mexico border wall.
In a 2-1 ruling last month, the 9th Circuit Court of Appeals determined that diverting military funds to build the border wall violated the Constitution.
Several groups, including the American Civil Liberties Union and Sierra Group, requested that construction be halted until the case played out in court.
The high court's ruling, however, denied the appeals court's decision, allowing the administration to continue building the border wall.
Justice Stephen Breyer, one of the four dissenting liberal judges, said the Supreme court's decision may operate "as a final judgment."
Dror Ladin, a staff attorney with the ACLU's National Security Project, said there are no plans to concede the case.
"Every lower court to consider the question has ruled President Trump's border wall illegal, and the Supreme Court's temporary order does not decide the case. We'll be back before the Supreme Court soon to put a stop to Trump's xenophobic border wall once and for all," Ladin said.