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Texas SB4 could upend 100 years of US immigration law by empowering states

Immigration enforcement at America’s southern border teetered on unprecedented uncertainty yesterday, as a flurry of federal courts grappled with whether a controversial Texas law can take effect.

Texas Senate Bill 4, or SB4 for short, makes it a state crime to enter Texas illegally. Amidst court challenges, however, the state hasn’t been able to enforce the law.

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The legal drama unfolding around Texas’ new immigration law points to the uncertainty surrounding a state attempt to use authority traditionally reserved for the federal government.

On Monday evening, Justice Samuel Alito extended a stay preventing SB4 from going into effect. Less than 24 hours later, the full U.S. Supreme Court reversed that order. Next, a federal appeals court said it would consider a more permanent stay of SB4. As quickly as the law could be enforced, it now couldn’t again.

The constitutionality of SB4 may not be decided for months. But the legal turmoil of the past three days has already threatened to upend over a century of U.S. immigration law, while triggering confusion across the Lone Star State.

Under SB4, state law enforcement can arrest people suspected of entering the state illegally and state judges could initiate deportations to Mexico. 

The legal uncertainty is “a roller coaster, [and] the stakes are very high,” says Denise Gilman, co-director of the Immigration Clinic at the University of Texas at Austin School of Law. 

Immigration enforcement at America’s southern border teetered on the edge of an uncertain new era Tuesday, as a flurry of rulings from federal courts grappled with whether a controversial Texas law can temporarily take effect.

Texas Senate Bill 4, or SB4 for short, makes it a state crime to enter Texas illegally. Amidst court challenges from the Biden administration and others, however, the state has never been able to enforce the law. As recently as early Monday evening, Justice Samuel Alito extended a stay preventing SB4 from going into effect.

But less than 24 hours later, an unsigned ruling from the full Supreme Court effectively reversed that order. If that wasn’t enough whiplash, hours later, a federal appeals court announced it would be hearing oral arguments concerning a more permanent stay of SB4. As quickly as the law could be enforced, it now couldn’t again. 

Why We Wrote This

A story focused on

The legal drama unfolding around Texas’ new immigration law points to the uncertainty surrounding a state attempt to use authority traditionally reserved for the federal government.

The actual constitutionality of SB4 may not be decided for months. Yet the legal turmoil of the past three days has threatened to upend over a century of U.S. immigration law, while triggering confusion and panic across the Lone Star State. 

There are signs of a ripple effect, too. Iowa lawmakers on Tuesday passed a bill that also challenges federal immigration authority, creating a state crime for illegal reentry. 

If the Texas law goes into effect, “that is a huge change in the way our legal system works,” says Denise Gilman, co-director of the Immigration Clinic at the University of Texas at Austin School of Law.

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