Here’s another broken campaign promise from Donald John Trump.

He said he would change his approach if he were elected president of the United States, that he would become “more presidential.”

It hasn’t happened. The 71-year-old man who now is president isn’t going to change. He has demonstrated with graphic clarity his unwillingness to lend dignity to his comportment.

Indeed, this individual is changing the office he occupies.

Think of this for a moment. He goes to war with his foes, critics — and, yes, the media. He does so via Twitter. He has elevated a certain social medium to the level of venue for his policy pronouncements. The Trump White House acknowledges that his tweets become the official word of the president of the United States, our head of state, our commander in chief, the most powerful man on the planet.

Do you get it? He is lowering the office to his level! Rather than elevating his own standing to that of the exalted office to which he was elected, Trump is reducing the office a sort of playground, one populated by an overaged juvenile delinquent.

The president has disgraced his office. I would rue the day that he disgraces the great nation he is supposed to lead. However, the rest of us are better than the man who purports to be our leader.