Republicans are stepping up their scrutiny of dozens of shelters run by aid groups on the U.S. border with Mexico.

A prominent aid group along the U.S.-Mexico border is asking a Texas judge to push back on a widening Republican-led investigation into nonprofits that help migrants.

Tensions are rising among the growing numbers of migrants at the U.S.-Mexico border ahead of upcoming changes to U.S. asylum policies.

Merín gave birth to her daughter next to the Rio Grande, attended to by two Border Patrol agents, showing how lives routinely end up at risk at the U.S.-Mexico border. Mother and child were hospitalized for three days, then processed at a Border Patrol station before being released to Catholic Charities. “There’s so many women in great danger,” said Sister Norma Pimentel, executive director of Catholic Charities of the Rio Grande Valley. The Border Patrol blames smugglers for using people in medical distress as decoys, drawing attention from others trying to sneak into the country. The Border Patrol defends how it treats immigrants and the medical care they receive.