Spurred on by President Trump’s deportation priorities, a group of big-firm lawyers and nonprofit attorneys has launched a project to represent immigrants nationwide who are at risk for deportation and already has distributed a mass letter to hundreds of large firms seeking donations and pro bono work.

The American Immigrant Representation Project, formed shortly after Trump’s election, on Friday wrote to more than 300 lawyers, mostly at Am Law 200 firms and plaintiff firms, spelling out the need for resources and volunteers. The letter asks firms to commit $10,000 and/or designate a partner and three associates who will develop an expertise in the field through the initiative’s training and represent those targeted for removal.