WASHINGTON (AP) — The Supreme Court on Thursday rejected President Donald Trump's effort to end legal protections for 650,000 young immigrants, a stunning rebuke to the president in the midst of his reelection campaign.

The outcome seems certain to elevate the issue in Trump's campaign, given the anti-immigrant rhetoric of his first presidential run in 2016 and immigration restrictions his administration has imposed since then.

The justices rejected administration arguments that the 8-year-old Deferred Action for Childhood Arrivals Program is illegal and that courts have no role to play in reviewing the decision to end DACA.

Chief Justice John Roberts wrote for the court that the administration did not pursue the end of the program properly.

"We do not decide whether DACA or its rescission are sound policies," Roberts wrote. "We address only whether the agency complied with the procedural requirement that it provide a reasoned explanation for its action. Here the agency failed to consider the conspicuous issues of whether to retain forbearance and what if anything to do about the hardship to DACA recipients."

The Department of Homeland Security can try again, he wrote.

But for now, DACA recipients retain their protection from deportation and their authorization to work in the United States.