Alfredo Parrish, an attorney representing Roberts, announced during a news conference earlier on Tuesday that he would submit a letter of resignation on behalf of Roberts to the school board.

The U.S. Department of Justice is investigating Des Moines Public Schools for potential race-based employment discrimination.

A stay of removal, if granted, would prevent the DHS from deporting Roberts, a native of Guyana, while his lawyers challenge the removal order, according to the American Immigration Council, a nationa...