Steyer’s five-part plan includes passing stronger legislation to combat racial profiling, appointing a special task force to prosecute crimes at detention facilities and launching a “Know Your Rights” public awareness campaign. Additionally, he promised to “bring those detained and kidnapped by ICE back home” by creating a stronger legal defense network to help immigrants. The most attention-grabbing part of Steyer’s plan, though, is to give the attorney general power to prosecute ICE leadership. His plan cites the concept of “supervisory liability,” in which superior officers and agency leaders are held liable for actions they direct subordinates to do. The plan...