Texas is challenging federal control of policy on the US-Mexico border by exploiting what it sees as a constitutional loophole around the definition of an “invasion” but that migrants rights activists see as dangerously ramping up fears with racist language. Immigration policy has long been under the purview of the US federal government – not individual states – since the US supreme court ruled so in a landmark United States v Arizona case in 2012. But in November of 2022, rightwing Republican governor Greg Abbott invoked the “invasion” clauses found in the Texas and US constitutions, likening migrants at the...