Republican-led states join forces in border crackdown, resulting in hundreds of arrests and seizures.

Republican governors from 14 states are sending national guard troops and other personnel to the Texas-Mexico border in a show of force that immigration advocates warn risks lives and critics denounce as “political stunts”. Their rush answers a call from the Texas governor, Greg Abbott, for reinforcements, citing an emergency, amid his repeated challenges to federal authority at the border. State personnel do not have the power to process people crossing the US-Mexico border to request asylum, which comes under federal authority, and experts caution their presence is confusing, intimidating and potentially dangerous.