NEW YORK • Confused and tired-looking toddlers clung to their parents at Port-au-Prince airport in Haiti on Tuesday, among the 360 family members rapidly expelled from the U.S. over the past three days.

These scenes came after U.S. border agents on horseback on Sunday used whip-like reins to block Haitian migrants wading across the Rio Grande with food and supplies from Mexico to a squalid encampment with nearly 10,000 people on the Texas side.

The images triggered anguish among some current U.S. officials interviewed by Reuters who said they once had high hopes that U.S. President Joe Biden would quickly reverse the hardline immigration policies of his Republican predecessor Donald Trump and, as he promised, “restore humanity and American values” to the immigration system.

Outside the government, disillusioned immigration advocates point to Biden’s refusal to repeal Trump’s most sweeping policy known as Title 42 — that allows border agents to quickly expel most migrants to Mexico or their home countries without a chance to apply for asylum.

Biden extended the March 2020 policy put in place by the U.S. Centers for Disease Control, arguing it remained necessary as a public health measure amid the COVID-19 pandemic.

“These deterrence (and) expulsion measures deny due process to asylum seekers and place them in harm’s way. That is a human rights violation,” Michael Knowles, president of AFGE Local 1924, the union that represents the asylum officers at U.S. Citizenship and Immigration Services (USCIS) told Reuters.

“Our members are outraged by the mistreatment of migrants and the refusal of our border authorities to allow them to have their asylum claims heard.”

Three other USCIS employees expressed similar concerns to Reuters, as did an official at another government agency.

Asylum officers interview migrants and refugees to determine if they need protection in the United States, while Border Patrol or Immigration and Customs Enforcement (ICE) agents oversee border security and detention.

Top Democratic lawmakers joined in the criticism. The dwindling goodwill among allies comes as Biden’s immigration agenda was dealt a blow on Sunday when the Senate parliamentarian ruled Democratic proposals to give legal status to millions of immigrants in the United States could not be included in a budget reconciliation bill.

Biden did exempt unaccompanied children from Title 42 expulsions early in his presidency. But he has included families, even after a federal judge on Thursday ordered the government to stop expelling them. The administration is appealing the order.

A two-week stay on the order was “to allow the government time to organize itself,” said Lee Gelernt, the lead attorney from the American Civil Liberties Union suing the administration over the policy, “not to round up as many people as possible to expel them, and certainly not to expel desperate Haitian asylum seekers.”

The Trump administration argued many asylum claims were false and issued a flurry of policies to limit protections, moves that were often criticized by the USCIS’ union headed by Knowles.

One of the USCIS officials who spoke on condition of anonymity because they are not authorized to speak to the press said it was understood it would take time to roll back the Trump-era measures, but that some are now losing patience in the face of slow reform.

“It’s appalling, disgusting,” the official said. “What do they believe in, if this is acceptable?” Some colleagues were considering whether to leave their jobs, the official said.

Another USCIS official spoke of being “personally mortified.”

Haitian migrants walk together in Port-au-Prince after U.S. authorities flew them out of a Texas border city Sunday where thousands of mostly Haitians had gathered under a bridge after crossing the Rio Grande river from Mexico.

Reuters