The controversial interim head of the Justice Department is scheduled to be accompanied by U.S. Solicitor General Noel Francisco in Austin.
The refusal by the two firms to take on a yearlong contract came one day before Trump announced the end of family separation.
Clashing decisions by federal judges could allow Trump to deport 700,000 undocumented immigrants protected by the program.
They had entered the U.S. illegally, seeking asylum from an abusive home, and were completely unaware they would be separated.
Last weekend, border agents turned away legal asylum-seekers on the U.S.-Mexico border. In a ‘Texas Monthly Reporter’ podcast, reporter Robert Moore discusses this tactic and its effect on those being turned away.
The policy shift means that parents will be separated from their children if caught while crossing borders illegally.