The Supreme Court on Tuesday allowed Texas to enforce a contentious new law that gives local police the power to arrest migrants.
The conservative-majority court, with three liberal justices dissenting, rejected an emergency request made by the Biden administration, which said states have no authority to legislate on immigration, an issue the federal government has sole authority over.
That means the law can go into effect while litigation continues in lower courts.
The law in question, known as SB4, allows police to arrest migrants who illegally cross the border from Mexico and imposes criminal penalties. It would also empower state judges to order people to be deported to Mexico.
The dispute is the latest clash between the Biden administration and Texas over immigration enforcement on the U.S.-Mexico border.
A federal judge blocked the law after the Biden administration sued, but the New Orleans-based 5th U.S. Circuit Court of Appeals said in a brief order that it could go into effect March 10 if the Supreme Court declined to intervene.
On March 4, Justice Samuel Alito issued a temporary freeze on the law to give the Supreme Court time to consider the federal government’s request.
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Solicitor General Elizabeth Prelogar said in court papers that the Texas law is “flatly inconsistent” with Supreme Court precedent dating back 100 years.
“Those decisions recognize that the authority to admit and remove noncitizens is a core responsibility of the national government, and that where Congress has enacted a law addressing those issues, state law is preempted,” she wrote.
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The appeals court, Prelogar added, did not explain its reasoning for allowing the law to go into effect.
She dismissed Texas’ argument that its law can be defended on the basis that the state is effectively battling an invasion at the border under the State War Clause of the Constitution. The provision says states cannot “engage in war, unless actually invaded” or in imminent danger.
“A surge of unauthorized immigration plainly is not an invasion within the meaning of the State War Clause,” Prelogar wrote.
Defending the law, Texas Attorney General Ken Paxton said in court papers that the measure complements federal law and the state should be allowed to enforce it.
The Constitution “recognizes that Texas has the sovereign right to defend itself from violent transnational cartels that flood the state with fentanyl, weapons, and all manner of brutality,” he added.
Texas is “the nation’s first-line defense against transnational violence and has been forced to deal with the deadly consequences of the federal government’s inability or unwillingness to protect the border,” Paxton said.
The city of El Paso and two immigrant rights groups, Las Americas Immigrant Advocacy Center and American Gateways, have also challenged the law and had filed their own emergency request at the Supreme Court.
In 2012, the Supreme Court invalidated provisions of a tough immigration law enacted in Arizona. Only two of the justices who were in the majority in that case are still on the court: Chief Justice John Roberts and Justice Sonia Sotomayor.
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