色多多

It was unclear what such a decision might look like, but a majority of the court expressed concerns about what would happen if the Trump administration were allowed, even temporarily, to deny citizenship to children born to people who are in the United States illegally.

The justices heard arguments in the Trump administration鈥檚 emergency appeals over lower court orders that kept the citizenship restrictions on hold across the country. Nationwide, or universal, injunctions emerged as a check on Trump鈥檚 efforts to remake the government and a mounting frustration to the Republican president and his allies.

Judges issued 40 nationwide injunctions since Trump began his second term in January, Solicitor General D. John Sauer told the court at the start of more than two hours of arguments.

Birthright citizenship is among several issues, many related to immigration, that the administration asked the court to address on an emergency basis.

The justices are also considering the Trump administration鈥檚 pleas to end humanitarian parole for more than 500,000 people from Cuba, Haiti, Nicaragua and Venezuela and to strip other temporary legal protections from another 350,000 Venezuelans.

The administration remains locked in legal battles over its efforts to swiftly deport people accused of being gang members to a prison in El Salvador under an 18th century wartime law called the Alien Enemies Act.

Trump signed an executive order on the first day of his second term that would deny citizenship to children who are born to people who are in the country illegally or temporarily.

The order conflicts with a Supreme Court decision from 1898 that held that the Citizenship Clause of the 14th Amendment made citizens of all children born in the U.S. with narrow exceptions that are not at issue in this case.

States, immigrants and rights groups sued almost immediately, and lower courts quickly barred enforcement of the order while the lawsuits proceed.

The current fight is over the rules that apply while the lawsuits go forward.

The court鈥檚 liberal justices seemed firmly in support of the lower court rulings that found the changes to citizenship that Trump wants to make would upset the settled understanding of birthright citizenship that existed for more than 125 years.

Birthright citizenship is an odd case to use to scale back nationwide injunctions, Justice Elena Kagan said.

鈥淓very court has ruled against you,鈥� she told Sauer.

But if the government wins on today鈥檚 arguments, it could still enforce the order against people who haven鈥檛 sued, Kagan said.

鈥淎ll of those individuals are going to win. And the ones who can鈥檛 afford to go to court, they鈥檙e the ones who are going to lose,鈥� she said.

Several conservative justices who might be open to limiting nationwide injunctions also wanted to know the practical effects of such a decision as well as how quickly the court could reach a final decision on the Trump executive order.

Justice Brett Kavanaugh pressed Sauer with a series of questions about how the federal government might enforce Trump鈥檚 order.

鈥淲hat do hospitals do with a newborn? What do states do with a newborn?鈥� he said.

Sauer said they wouldn鈥檛 necessarily do anything different, but the government might figure out ways to reject documentation with 鈥渢he wrong designation of citizenship.鈥�

Kavanaugh continued to press for clearer answers, pointing out the executive order gave the government only about 30 days to develop a policy. 鈥淵ou think they can get it together in time?鈥� he said.

The Trump administration complained that judges are overreaching by issuing orders that apply to everyone instead of just the parties before the court.

Picking up on that theme, Justice Samuel Alito said he meant no disrespect the nation鈥檚 district judges when he opined that they sometimes suffer from an 鈥渙ccupational disease 鈥� 鈥業 am right, and I can do whatever I want.鈥欌��

But Justice Sonia Sotomayor was among several justices who raised the confusing patchwork of rules that would result if the court orders were narrowed and new restrictions on citizenship could temporarily take effect in more than half the country.

Some children might be 鈥渟tateless,鈥� Sotomayor said, because they鈥檇 be denied citizenship in the U.S. as well as the countries their parents fled to avoid persecution.

New Jersey Solicitor General Jeremy Feigenbaum, representing 22 states that sued, said citizenship could 鈥渢urn on and off鈥� for children crossing the Delaware River between Camden, New Jersey, where affected children would be citizens, and Philadelphia, where they wouldn鈥檛 be. Pennsylvania is not part of the lawsuit.

One possible solution for the court might be to find a way to replace nationwide injunctions with certification of a class action, a lawsuit in which individuals serve as representatives of a much larger group of similarly situated people.

Such a case could be filed and acted upon quickly and might even apply nationwide.

But under questioning from Justice Amy Coney Barrett and others, Sauer said the Trump administration could well oppose such a lawsuit or potentially try to slow down class actions.

Supreme Court arguments over emergency appeals are rare. The justices almost always deal with the underlying substance of a dispute.

But the administration didn鈥檛 ask the court to take on the larger issue now and, if the court sides with the administration over nationwide injunctions, it鈥檚 unclear how long inconsistent rules on citizenship would apply to children born in the United States.

A decision is expected by the end of June.