The Trump administration is hitting out against a long term immigration policy.<br />The policy granted long-term reprieves to immigrants targeted for deportation.<br />Prosecutors are now fighting deportation reprieves.<br />There is a now a significant back-log in deportation court cases.<br />About 542,000 cases were pending three weeks before Trump took office.<br />Since then, the backlog has grown by another estimated 145,000 cases. <br />