bring a few ICE people too and check some ID’s and make a few arrests and them ship their sorry assess back to where ever they came from.
Problem solved
Just make sure everyone that is there to protest Cruz knows that the Criminal Invader standing next to them, screaming at the top of their lungs blowing spittle all over everyone may be carrying the Ebola virus, TB, Scabies, lice etc.
What makes you think ICE hasn't figured out that illegals are a source of cash flow for their agency? The bigger the problem becomes the more likely it is that existing officers with seniority will be promoted.