They have become the magic words that can make constitutional restraints disappear—especially when the courts defer to claims of national security.

Call something a matter of national security and the normal rules start disappearing: Courts defer. Congress retreats. Secrecy expands. Executive power grows.

That game is hardly new.

Nixon played it. Bush played it. Obama played it. Biden played it.

Trump may not have invented the national-security dodge, but he has taken it to increasingly absurd extremes.

Under Trump 2.0, almost everything gets branded a matter of national security in order for the president to sidestep as many parts of the Constitution as he finds inconvenient.

At one point, the government even invoked national security to justify proposed tariffs on trumpets, trombones and tubas because the instruments depend on foreign copper alloys.

This would almost be laughable if the consequences were not so serious.

Trump wants greater control over the U.S economy? Declare a national emergency and seize the power to levy tariffs in the name of national security.

Trump is disgruntled over relations with Canada? Declare a national security threat and claim executive authority to levy tariffs without going through Congress.

Trump wants to build a lavish ballroom? Stick a bunker below it and a droneport on top, and call it national security.

Trump wants to erect a massive ceremonial arch? Turn it into a military installation, complete with drones, snipers and ammunition, and chalk it up to national security.

Trump doesn't like unfavorable press coverage? Ban reporters from the White House and characterize the press as a national-security threat.

National security has become Donald Trump's fail-safe strategy for defying the Constitution.

As Sophie Hurwitz writes for Mother Jones, "Trump is using agencies and emergency powers that sprung up in the aftermath of the 2001 attacks—and have never been abolished or repealed—to threaten domestic dissidents and anyone else he views as an enemy, claiming that those who oppose his policies constitute threats to America."

For decades, Congress has helped build this monster, repeatedly surrendering extraordinary powers to the Executive Branch whenever presidents invoke war, terrorism, emergency or national security.