Anyone who understands the modern left could not be shocked by U.S. District Judge Derrick Watson's issuance of a temporary restraining order against President Donald Trump's executively invoked travel ban -- but that doesn't make the order any less outrageous. The ruling was not just an exercise in judicial tyranny, as many have commented, but an act of jurisprudential nihilism and anarchy. Courts are not policymaking bodies but judicial tribunals that decide actual disputes on the basis of the facts and the law. For decades, the courts have arrogated to themselves the power to act outside their constitutional authority by...