"Unless you’re eating right, insulin is doing you no good," Walker, the GOP Senate candidate in Georgia, said in Friday's debate against Raphael Warnock.

The immigrants are being certified as crime victims, making them eligible for U visas, which often lead to green cards.

The use of the prop drew a rebuke from the moderator at the Senate rivals' debate: “You’re very well aware of the rules, aren’t you?”

"It’s awakened something I don’t think will be quieted in a long, long time," the president said of demonstrations since Mahsa Amini's death.