A federal appeals court has ruled that Texas can enforce its controversial immigration law, SB 4, allowing state law enforcement to arrest undocumented migrants. The Fifth Circuit upheld the law, emphasizing border security and permitting police to act on suspicions of unlawful entry. This decision marked another victory for Texas in its ongoing efforts to tighten immigration controls, with several statements from advocacy groups expressing concern over the implications for undocumented individuals. The court dismissed challenges to the law on procedural grounds, paving the way for its implementation.