Catholic bishops sued the Trump administration on Tuesday over its abrupt halt to funding of refugee resettlement, calling the action unlawful and harmful to newly arrived refugees and to the nation’s largest private resettlement program.

The new lawsuit raises questions not just about the future of refugee resettlement in the U.S., but also about the past.

The U.S. Conference of Catholic Bishops filed a lawsuit against the Trump administration on Tuesday evening for withholding millions of dollars of funding approved by Congress that assist in USCCB’s mission of providing relief and relocation to asylum refugees.