The great Donald Trump Arnold Schwarzenegger Twitter feud continued as the aging action star tweeted a video in which he taunted the president for poll approval numbers that show him in the high 30s. ““But what do you expect? I mean when you take away after-school programs for children and Meals on Wheels for the poor people, that’s not what you call ‘making America great again.’ Come on!”

The feud started when Trump ridiculed Schwarzenegger for his low ratings as the new host of “Celebrity Apprentice,” a show that the current president made famous.

Then, when it was announced that the movie actor and current game app pitchman would not be back for a second season, the president declared that he had been fired for the low ratings. Schwarzenegger, for his part, opined that the president was “in love” with him.

How is it that two highly successful men in their 70s are acting like eight-year-olds in a school yard? Both men have similar personalities, flamboyant, flashy, and a tendency to behave badly with women. But men who are old enough to be grandfathers should have better things to do than to carry out about one another on social media. Trump certainly does. He is the president of the United States and all that implies. Schwarzenegger has the tattered threads of his movie career to try to put back together.

He is too old to be an action hero anymore unless the studios finally let John Milius make “Conan: Crown of Iron” which would be about the sword-wielding fantasy hero in his declining years. Schwarzenegger has decided not to run for the Senate, which is too bad as it would provide a productive outlet for his discontent.

The only explanation has to be that nature of social media itself.

Twitter allows anyone on the planet to taunt and bully somebody else, one reason that too many teenagers are killing themselves. But when the people doing the taunting and the bullying are celebrities, the media lovingly reports every word and the world is witness to two old people yelling at each other.

Trump should be the one to stop it. The one response to people like Schwarzenegger is to pass good policy and otherwise make America great again, which would be more eloquent than another juvenile tweet.