Twenty-two Senate Republicans wrote Barack Obama a letter explaining their displeasure in the president’s selective immigration law enforcement. “We write to express our grave concerns over the immigration ‘enforcement review’ that you ordered,” they wrote. “[T]he changes under consideration would represent a near complete abandonment of basic immigration enforcement and discard the rule of law and the notion that the United States has enforceable borders. … Since 2009, your administration has issued policy directives and memoranda incrementally nullifying immigration enforcement. … These policies have operated as an effective repeal of duly enacted federal immigration law. … Our entire constitutional system is threatened when the Executive Branch suspends the law at its whim and our nation’s sovereignty is imperiled when the commander-in-chief refuses to defend the integrity of its borders.” But we need to trust him on reform.