Then president has all kind of legal help now, Bill Barr, so President does not NEED to know all the constitutional laws.
In other words, President Tweety can take the oath of office and neither know nor understand a single word or sentence of that oath, then proceed to behave as though the Constitution is nothing more than an old wood boat moored on exhibition in some harbour somewhere, instead of the Supreme Law of the Land that has the salient virtue of restricting the behaviour of government.
In other words, the president is entitled to be a constitutional ignoramus himself on the grounds that he has a Cabinet full or people presumed to be his constitutional brains, never
mind a) the oath he swears on the Bible to uphold and defend upon his inauguration; and, b) that whatever else their jobs entail, being the president's constitutional brains isn't one of the duties because of the presumption that---whatever you think of a particular president's constitutional acumen---the president has at least a minimal working knowledge of Mr. Madison's document.
In other words,
your president can be as ignorant of the Constitution as he pleases, while the
other guys' presidents (His Excellency Al-Hashish Field Marshmallow Dr. Barack Obama Dada, COD, RIP, LSMFT, Would-Have-Been Life President of the Republic Formerly Known as the United States, anyone? President Lips II, anyone? Droopy Drawers Clinton, anyone?) shall be condemned for knowing as much about the Constitution as a football player knows about the suicide squeeze play.
In other words, whatever else one can say about him, it's just all right that President Tweety has never once indicated, or behaved along the line, that he believes in any way, shape, or form in a
properly-construed
government---whose sole legitimate business, other than protecting us from enemies actual and provably iminent abroad and predators (
real predators, not mere vicemongers) at home, is
staying the hell out of your business, my business, everyone's business,
until or unless one would obstruct or abrogate another's equivalent rights---as opposed to an
improperly-construed
State which makes as its business every damn last drop of every American's business whether it is competent or Constitutionally sanctioned to do so.
Earlier in this decade, Gene Healy wrote a splendid pair of books,
The Cult of the Presidency: America's Dangerous Obsession with Executive Power and
False Idol: Barack Obama and the Continuing Cult of the Presidency. I'll be shocked not one whit if Mr. Healy in due course produces a third such volume this time examining President Tweety in that light, though I don't dare imagine what the title might be.