A coalition of more than 38 civil rights and immigrant advocacy leaders sent the White House a letter Tuesday evening calling on Biden to immediately stop expulsions of Haitians, some of whom arrived at the border community of Del Rio, Texas, after fleeing violence and natural disaster in their home county. The letter, first provided to POLITICO, marks a “final straw,” said Nana Gyamfi, executive director of the Black Alliance for Just Immigration and president of the National Conference of Black Lawyers. The coalition, which includes the ACLU, Human Rights Watch, and the The Leadership Conference on Civil and Human Rights, described the moment as “an inflection point” for Biden’s commitment to a humane immigration policy.

“Responsibility for the suffering and deaths resulting from summary expulsions and removals now falls squarely on your Administration and will be part of your enduring legacy,” the letter states. “Deportation flights to Haiti must stop, and those seeking safety at our borders must be granted their legally assured chance to seek asylum.”

Members of the president’s own party — from Senate Majority Leader Chuck Schumer (D-N.Y.) on down — echoed the call to end the expulsions. Increasingly, they did so while directing their ire at the White House for its handling of the situation. On Wednesday, 12 House Democrats, including Reps. Ayanna Pressley (D-Mass.), Joyce Beatty (D-Ohio) and Veronica Escobar (D-Texas) will hold a press conference calling on Biden to halt the deportations.