Nevada Attorney General Aaron Ford joined a coalition of 23 states opposing a proposed rule by the Trump administration that could displace more than 100,000 people in immigrant families — including at least 55,000 children who are U.S. citizens or otherwise eligible — from government-subsidized housing.

Ford and other attorneys general submitted a letter to the U.S Department of Housing and Urban Development (HUD) Tuesday opposing the controversial proposal that would deny housing assistance to mixed-status families that include undocumented immigrants.

The proposal would result in the eviction not only of the undocumented immigrants but also family members in the household who are in the U.S. legally.

“This proposal is another cruel and unjustified assault on immigrant families in Nevada by the Trump Administration,” said Ford in a statement. “There is no reason to separate family members and evict children from their homes. Mixed-status immigration families are Nevada families. I’m proud to join this coalition to keep Nevada families together.”

In the letter, the attorneys general argue the loss of housing benefits to thousands of families will result in significant economic and social harm to their states, including greater homelessness, reduced productivity and a higher incidence of significant health problems.

Private housing providers as well as the states would also be “burdened with substantially higher administrative costs” if the rule were to go into effect, according to the letter.

“The Proposed Rule would require these landlords to face greater administrative burdens to verify eligibility for prospective tenants,” reads the letter, adding that housing providers would be less likely to participate in subsidized housing programs if they had to prove prospective tenants’ immigration status.

Alongside Ford in signing onto the letter are the attorneys general of California, Colorado, Connecticut, Delaware, District of Columbia, Hawaii, Illinois, Iowa, Maine, Massachusetts, Michigan, Minnesota, New Jersey, New Mexico, New York, Oregon, Pennsylvania, Rhode Island, Vermont, Virginia and Washington.