Mariela Sanchez, of Honduras, comforts her son, Jonathan, 16, during a news conference, Monday, Aug. 26, 2019, in Boston. The Sanchez family came to the United States seeking treatment for Jonathan’s cystic fibrosis. Doctors and immigrant advocates say federal immigration authorities are unfairly ordering foreign born children granted deferred action for medical treatment to return to their countries. (AP Photo/Elise Amendola)