The U.S. Supreme Court ruled 5-4 Thursday that the Biden administration's decision to terminate the "Remain in Mexico" policy did not violate federal immigration law.
The allows the administration to end a hard-line immigration policy begun under his predecessor, Donald Trump, that required tens of thousands of migrants to stay in Mexico to await U.S. hearings on their asylum claims.
The ruling, written by Chief Justice John Roberts, overturned a federal appeals court decision requiring Biden to restart Trump's policy after the Republican-led states of Texas and Missouri sued to maintain the program.
The ruling is a victory for Biden, who appealed the lower court's decision, and his plan to implement a more "humane" approach at the southern border.
Trump's administration adopted the policy, formally called the "Migrant Protection Protocols," in 2018 in response to an increase in migration along the U.S.-Mexican border, changing longstanding U.S. practice.
It prevented certain non-Mexican migrants, including asylum seekers fearing persecution in their home countries, from being released into the United States to await immigration proceedings, instead returning them to Mexico.
Biden suspended the policy in January 2021, shortly after taking office, and acted to rescind it five months later. Roughly 68,000 people fell under the policy from the time it took effect in 2019 until Biden suspended it.
At issue in the case was the meaning of a provision of a 1996 U.S. immigration law that stated that U.S. officials "may return" certain immigrants to Mexican territory pending immigration proceedings. Texas and Missouri have said this provision must be used because the United States lacks detention space for migrants.
Biden's administration said the provision was clearly discretionary and the lower court's decision meant that "every presidential administration, in an unbroken line for the past quarter century, has been in open violation" of the law. Administrations prior to Trump's presidency had used the provision sparingly.
The Biden administration said lower courts are unacceptably interfering with the historically broad authority that U.S. presidents have held over immigration and foreign affairs.
For migrants not posing a security risk, immigration law separately allows their release into the United States for humanitarian reasons or "significant public benefit" pending a hearing, a practice officials have followed for decades.
The number of migrants caught crossing the U.S.-Mexico border has reached record highs recently. Republicans have criticized Biden's immigration policies and contend that the "remain in Mexico" policy effectively deterred unlawful migration.
After a judge ruled in favor of Texas and Missouri, reinstating the program, the Supreme Court last August refused the Biden administration's request to block that decision while it appealed.
The New Orleans-based 5th U.S. Circuit Court of Appeals ruled in December that because the government lacks the capacity to detain all migrants eligible for admission pending a hearing, it must maintain "remain in Mexico."
The decision was issued on the final day of rulings for the court's current nine-month term.
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