Though about 30 to 40 were arrested, hundreds showed up to take part in the “Catholic Day of Action with Dreamers.”

“Now is the time to pass legislation that enables the Dreamers to become citizens and full contributing members of our society,” said Archbishop José H. Gomez of Los Angeles.

Join America as we call Congress and discuss what this means for the future of "Dreamers."

Catholic leaders and organizers from around the U.S. have been loudly clamoring for relief for the young adults, some who already face deportation and the loss of permits that allow them to work, drive and attend school.

U.N. agencies estimate more than 65 million people are currently stateless or forcibly displaced from their countries and 51 percent of them are children.

The U.S. Conference of Catholic Bishops are urging Catholics to call Congress and demand they act on behalf of “Dreamers.”