Bovino, a nearly 30-year veteran of the U.S. Border Patrol, has emerged as a central figure in Trump's aggressive immigration strategy.

Judge Sara L. Ellis is ordering top Border Patrol official Gregory Bovino to testify after a video showed him apparently violating her orders.

New video appears to show Border Patrol Chief Greg Bovino lobbing a can of tear gas into a crowd of protesters, but DHS says agents acted ‘in full accordance with CBP policy’ during a clash in Little Village on Thursday.