The Supreme Court on Tuesday was sharply divided over President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE's move to end Obama-era protections for immigrants who arrived in the U.S. illegally as children, as the justices heard oral arguments in one of the most closely watched cases of the term.

Members of the court’s conservative wing appeared wary of allowing the court to review the administration’s decision to begin phasing out the Deferred Action for Childhood Arrivals (DACA) program, which grants deferral from deportation to nearly 700,000 young adult immigrants without legal status.

And questions from conservative justices during oral arguments suggested they appeared to think the administration had supplied legally sound reasons for eliminating DACA.

ADVERTISEMENT

Justice Neil Gorsuch Neil GorsuchTrump plans to pick Amy Coney Barrett to replace Ginsburg on court Abortion stirs GOP tensions in Supreme Court fight Poll: 59 percent think president elected in November should name next Supreme Court justice MORE, a Trump appointee, and Justice Samuel Alito Samuel AlitoAbortion, gun rights, ObamaCare at stake with Supreme Court pick READ: Supreme Court justices mourn death of Ginsburg, 'an American hero' Ginsburg death sets up battle over future of court MORE, a George W. Bush appointee, seemed concerned that authorizing a review could give judges too much power over executive agency decisions.

“Can you help me understand what is the limiting principle?” Gorsuch asked Theodore Olson, one of two lawyers arguing to preserve DACA. “I hear a lot of facts, sympathetic facts, you put out there, and they speak to all of us. But what's the limiting principle?"

Chief Justice John Roberts, a George W. Bush appointee, who was closely watched as a potential swing vote, also appeared unsure about whether the court had the power to review Trump's decision to terminate the program.

Michael Mongan, the deputy solicitor general of California, who argued for DACA alongside Olson, said the Obama administration's program was consistent with historical deportation-relief policies.

Roberts pushed back against that assertion, saying previous administrations' programs were far less sweeping in their use of prosecutorial discretion.

“That history is not close to the number of people covered by DACA,” Roberts said.

Justice Stephen BreyerStephen BreyerAppeals court revives House lawsuit against Trump border wall READ: Supreme Court justices mourn death of Ginsburg, 'an American hero' Ginsburg death sets up battle over future of court MORE, a Clinton appointee, also appeared uncertain about whether the court had the power to review Trump's decision.

“I'm saying honestly,” Breyer said, “I am struggling to get the right rule.”

At issue for the justices are two overlapping questions: Whether the courts have the right to second-guess Trump's action, and if Trump's DACA repeal was lawful.

But the oral arguments highlighted the sharp ideological split, with many of the court's liberal members inclined to view the DACA repeal as falling within the court's purview.

They also questioned whether the Trump administration had provided an adequate justification for its decision to terminate the program. Above all, the liberal justices questioned the fallout from the decision and whether the administration had appropriately weighed the ramifications of terminating DACA.

Olson, a former George W. Bush solicitor general, seemed to gain ground with members of the court’s liberal wing during arguments.

He told the justices that the Trump administration’s earliest stated reason for the rollback — that DACA was illegal — was without merit, letting administration officials upend the lives of hundreds of thousands of people who relied on the deportation relief program without taking responsibility for the decision.

Justice Sonia Sotomayor Sonia SotomayorToomey, swing state Republican, supports Senate moving on Trump Supreme Court nominee Names to watch as Trump picks Ginsburg replacement on Supreme Court READ: Supreme Court justices mourn death of Ginsburg, 'an American hero' MORE, an Obama appointee, was among several liberal justices who questioned whether the administration weighed the impact on DACA recipients, commonly known as "Dreamers," who had come to rely on the program. The word “reliance” was mentioned 46 times during oral arguments.

She asked solicitor general Noel Francisco, who argued the case on behalf of the Trump administration, at what point the administration took ownership of the consequences of repeal.

“Where is the political decision made clearly,” she asked, “that this is not about the law; this is about our choice to destroy lives.”

Breyer seemed skeptical that the Trump administration weighed the fallout of the decision, including beyond those young adults who are DACA recipients.

Breyer noted that among the friend-of-court briefs filed in this case were health care organizations, labor unions, businesses, religious groups, hundreds of educational associations and six military organizations, plus states and cities.

Breyer, in a question to Francisco, said those groups had raised issues "which are not quite the same as those of the 700,000 who have never seen any other country."

The court is expected to issue a ruling next summer, just months before Election Day.

The high political stakes in the case were apparent Tuesday, as large crowds of immigration rights protesters gathered on the steps of the court earlier in the morning, where they urged the justices to save the program.

Hours after the oral argument, Democratic lawmakers from both chambers held a press conference to rally support for legislation to protect Dreamers. Flanked by DACA recipients, both House Speaker Nancy Pelosi Nancy PelosiDemocratic senator to party: 'A little message discipline wouldn't kill us' Overnight Health Care: New wave of COVID-19 cases builds in US | Florida to lift all coronavirus restrictions on restaurants, bars | Trump stirs questions with 0 drug coupon plan Overnight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds MORE (Calif.) and Senate Minority Leader Charles Schumer Chuck SchumerPelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' 3 reasons why Biden is misreading the politics of court packing Cruz blocks amended resolution honoring Ginsburg over language about her dying wish MORE (N.Y.) expressed support for the measure.

"Thank you to our Dreamers for making America more American with their hopes, optimism, courage and determination to make their future better for their families," Pelosi said.

Trump also weighed in on the case just hours before the justices met, blasting DACA recipients.

“Many of the people in DACA, no longer very young, are far from ‘angels.’ Some are very tough, hardened criminals,” Trump said in a tweet.

And the president told the justices that if they let his repeal stand he would work with Congress to pass legislation to address the issue. “If Supreme Court remedies with overturn, a deal will be made with Dems for them to stay!"

Trump has defended his move to end the program, even as he insists that he wants a fix to resolve the issue and allow the Dreamers to stay.

The oral arguments were only the latest front in a long, contentious fight over the program.

The case traces back to 2012, when then-President Obama established DACA through executive action. Roughly 660,000 people are now enrolled in the program, which grants a renewable two-year deferral from deportation, and makes applicants eligible for work permits, driver’s licenses and health insurance.

President Trump, who campaigned on a promise to end Obama’s “illegal executive amnesties,” announced plans in fall 2017 to rescind the program. The move was met with swift legal challenges. Federal lower court judges in three cases ruled against the Trump administration.

Before the Supreme Court on Tuesday, lawyers for the Trump administration said the lower courts erred. Francisco, the solicitor general, argued that the courts lack jurisdiction to review the repeal, and that their decisions should be vacated.

If the justices decide the repeal is reviewable, Francisco argued, the administration's decision should be upheld as based on legally justified reasons.

Francisco sought to persuade the court that the Trump administration rescinded DACA not only because it believed the program was illegal, but also for legitimate policy reasons.

The agency's rationale was spelled out in two Department of Homeland Security memos, he said, the first of which argued that Obama engaged in “an unconstitutional exercise of authority” when he set up the program in 2012 through executive action.

A second memo provided additional policy reasons, including the administration's stance that a repeal of DACA would deter future illegal immigration.

One question that arose during arguments was whether the second Trump administration memo was an after-the-fact effort to bolster their case in the event the court determined DACA was legal.

Justice Brett Kavanaugh Brett Michael KavanaughTrump plans to pick Amy Coney Barrett to replace Ginsburg on court Collins trails challenger by 4 points in Maine Senate race: poll SCOTUS confirmation in the last month of a close election? Ugly MORE, a Trump appointee, pushed back against an assertion from Mongan, who dismissed the second memo, written by then-Homeland Security Secretary Kirstjen Nielsen Kirstjen Michele NielsenMore than million in DHS contracts awarded to firm of acting secretary's wife: report DHS IG won't investigate after watchdog said Wolf, Cuccinelli appointments violated law Appeals court sides with Trump over drawdown of immigrant protections MORE, as supplying only “boilerplate” policy reasons.

“Well, can I just stop you on boilerplate?” Kavanaugh said. “This is a serious decision. We all agree with that. And it was for the secretary, presumably.

"To say in writing, even if it's lawful, 'I nonetheless am going to exercise my discretion,' I assume that was a very considered decision,” Kavanaugh continued.

The Supreme Court’s decision will be guided by a federal statute that concerns how much decisionmaking power federal agencies have.

The Administrative Procedure Act will ultimately govern both of the overlapping issues at play here: if the courts have jurisdiction, and whether the repeal was legally justified or if it was “arbitrary and capricious,” and thus illegal under the act.

--Updated at 5:20 p.m.