In a matter of hours last Thursday, the U.S. Supreme Court blocked a citizenship question from next year’s census and blocked federal courts from hearing challenges to extreme partisan gerrymandering. Twenty-four hours later, as the reactions continued to pour in, the court made the quiet, but equally seismic, decision to hear a case about President Donald Trump’s decision to end an Obama-era program protecting hundreds of thousands of immigrants who were brought illegally to the United States as children. That case concerning the termination of the Deferred Action for Childhood Arrivals (DACA) program, likely one of the biggest cases the...