Border Patrol struggles with surge of migrants in El Paso, Texas

"We must treat these vulnerable families and migrants with dignity and respect," said Castro, who chairs the Congressional Hispanic Caucus.On the other side of the aisle, Sen. John Cornyn, R-Texas, lashed out on the Senate floor at Democrats for calling the situation on the border a "fake emergency."The numbers of arriving migrants "confirm what we said all along — it is even more than an emergency, it is a total system failure, and the only people that can fix it are Congress, working with the president," Cornyn said.Randy Capps, director of research for U.S. programs at the Migration Policy Institute, said the driving forces behind the problems in El Paso are many and complex.“To have this kind of a rapid increase in the numbers of migrants coming, you have to have a lot of factors all operating at the same time,” Capps said.Deteriorating economies in Honduras and Guatemala; a good U.S. economy, even if it may be slowing down; continued violence in the Northern Triangle countries of Guatemala, Honduras and El Salvador; and Mexico's transitioning to a new president have effected the migration flows, Capps said.Organized large groups of migrants or "caravans" of people traveling to the border are offering a safe way for people to arrive.