SAN ANTONIO (AP) — A surge of immigrant children pouring into Texas and across the southwest U.S. border brought Republican and Democratic leaders Monday to federal facilities across the state where tens of thousands of unaccompanied minors are being held in temporary shelters.

At Lackland Air Force Base in San Antonio, Republican U.S. Sen. Ted Cruz and Texas Attorney General Greg Abbott emerged from a tour calling the situation a “humanitarian crisis” — the same way President Barack Obama has described more than 52,000 children who’ve entered the country illegally in recent months.